Evolutionary Medicine

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    • NOTOC**

Evolutionary Medicine

Evolutionary medicine, sometimes called Darwinian medicine, applies evolutionary biology to questions of human health, disease, development, and medical treatment. Rather than considering only the immediate physiological mechanisms that produce illness, evolutionary medicine also asks why humans possess traits that create vulnerability to particular diseases and why natural selection has not eliminated those vulnerabilities.

The field draws on natural selection, adaptation, evolutionary trade-offs, life-history theory, developmental plasticity, host–pathogen coevolution, comparative biology, genetics, ecology, anthropology, and population biology. Evolutionary explanations are generally intended to complement rather than replace conventional biomedical explanations. They can help distinguish the immediate mechanisms of disease from the historical and evolutionary processes that produced the biological systems in which disease occurs.

Research in evolutionary medicine ranges from foundational questions about human vulnerability to illness to practical problems involving antimicrobial resistance, cancer treatment, reproductive health, chronic disease, aging, mental health, and public health.

Foundations and Core Principles

A central principle of evolutionary medicine is the distinction between proximate and evolutionary explanations. Proximate explanations describe how a disease or physiological response occurs through mechanisms such as genes, hormones, immune responses, metabolism, or cellular processes. Evolutionary explanations ask why those mechanisms evolved and why they sometimes leave organisms vulnerable to disease.

Natural selection does not produce perfect organisms. Evolution operates through modifications of existing biological structures and is constrained by ancestry, developmental pathways, genetic variation, environmental conditions, and trade-offs among competing biological functions.

Traits that improve reproductive success in one context may carry health costs in another. Selection may favor characteristics that provide benefits early in life even when they increase disease risk later. Some traits may persist because their harmful effects appear primarily after reproduction, when natural selection is less effective at removing them.

Evolutionary medicine therefore focuses not only on adaptations but also on constraints, trade-offs, historical legacies, environmental change, and conflicts among different biological interests.

Evolutionary Mismatch and Diseases of Modernity

Evolutionary mismatch occurs when characteristics that evolved under one set of environmental conditions interact poorly with substantially different modern environments.

Human populations experienced major changes in diet, physical activity, settlement patterns, pathogen exposure, reproductive behavior, technology, employment, and social organization over relatively short evolutionary periods. These environmental changes may contribute to obesity, metabolic disease, cardiovascular disease, inflammatory disorders, some cancers, allergies, and other chronic conditions.

Research on mismatch also examines interactions among genetics, developmental conditions, physiology, and changing environments. Modern disease cannot generally be attributed to mismatch alone, but mismatch provides one framework for understanding why biological systems adapted to past conditions may function differently under contemporary circumstances.

Life-history perspectives add another dimension by examining how organisms allocate limited energy among growth, maintenance, reproduction, immunity, and survival.

Infection, Immunity and Pathogen Evolution

Infectious disease is one of the clearest areas in which evolutionary processes directly affect medicine.

Pathogens evolve rapidly because many microorganisms reproduce quickly and exist in enormous populations. Antibiotics and other antimicrobial treatments create selection pressures that can favor resistant variants. As resistant organisms survive treatment and reproduce, resistance can spread through microbial populations.

Evolutionary research examines strategies such as sequential therapies, altered treatment schedules, antivirulence approaches, and other methods intended to slow or redirect resistance evolution.

Virulence also evolves. The amount of harm caused by a pathogen can reflect trade-offs involving transmission, replication, immune escape, and host survival. Changes in host behavior, vaccination, diagnostic practices, and public-health interventions may alter the selective environment experienced by pathogens.

Research on COVID-19 and other infectious diseases has demonstrated the importance of evolutionary approaches for understanding pathogen variation, antigenic change, host susceptibility, transmission, and reinfection.

Immunity, Inflammation and Host Defenses

Many symptoms traditionally viewed simply as harmful consequences of disease can also be studied as possible evolved defensive responses.

Fever, pain, nausea, behavioral changes, immune activation, and pathogen-avoidance behaviors may sometimes help organisms respond to threats. However, defensive mechanisms can themselves become harmful when excessively activated, triggered in inappropriate circumstances, or maintained for too long.

Chronic inflammation illustrates this problem. Immune responses that provide short-term protection against infection or injury may contribute to chronic disease when continuously activated.

Evolutionary studies also investigate energetic trade-offs within the immune system. Resources allocated to immune defense cannot simultaneously be used for growth, reproduction, or other biological functions. Environmental conditions during development may therefore influence how individuals allocate resources among different immune mechanisms.

The Human Microbiome

Evolutionary medicine increasingly treats humans as ecological systems whose biology is closely connected with microbial communities.

The intestinal, oral, skin, and other microbiomes can influence metabolism, immune development, inflammation, pathogen resistance, and other aspects of health. Antibiotics, diet, sanitation, childbirth practices, early-life environments, and cultural behaviors can alter these microbial ecosystems.

Researchers have examined how early antibiotic exposure may affect later metabolic and allergic disorders, how pregnancy influences host–microbiome interactions, and how environmental exposures shape infant and adult microbial communities.

Comparisons with nonhuman primates and other animals may also reveal aspects of microbial diversity lost or altered during human ecological and technological change.

Cancer as an Evolutionary Process

Cancer is increasingly understood as an evolutionary process occurring within the body.

Tumors contain populations of cells that vary genetically and phenotypically. Treatments can impose strong selection pressures on these populations. Sensitive cancer cells may be destroyed while resistant cells survive and reproduce, allowing resistance to emerge.

Evolutionary oncology therefore examines tumor competition, cooperation, mutation, ecological interactions, and selection.

One influential approach is adaptive therapy. Instead of attempting to eliminate every cancer cell with the maximum possible treatment intensity, adaptive therapy may seek to maintain a population of treatment-sensitive cells that can compete with resistant cells. Treatment intensity can then be adjusted in response to tumor behavior.

Other research investigates evolutionary traps, functional organization within tumors, comparative cancer biology, and differences in cancer susceptibility among species.

Reproduction, Pregnancy and Childbirth

Human reproduction provides numerous examples of evolutionary trade-offs and biological conflict.

Pregnancy requires coordination between maternal and fetal physiological systems, but maternal and fetal evolutionary interests are not always identical. Research on maternal–fetal conflict examines placental hormones, fetal growth, nutrient allocation, pregnancy sickness, and the timing of childbirth.

Evolutionary perspectives have also been applied to cesarean delivery, pelvic anatomy, childbirth position, breastfeeding, maternal nutrition, pubertal development, and reproductive investment.

Human childbirth is influenced by the combination of bipedal anatomy, pelvic structure, fetal growth, and large neonatal brains. Evolutionary approaches examine how these characteristics interact rather than assuming that human anatomy represents an optimal design.

Developmental Plasticity and Early-Life Health

Developmental plasticity allows organisms to modify development in response to environmental conditions.

Conditions experienced before birth and during childhood can influence metabolism, growth, immunity, reproductive development, and later disease susceptibility. These effects may sometimes represent developmental responses to environmental information, although conditions encountered later in life may differ from those experienced during development.

Research in this area includes fetal growth, birthweight, epigenetic aging, nutrition, immune development, childhood stress, microbiome formation, and the developmental origins of adult disease.

Life-history theory provides an additional framework for understanding how early conditions can influence the allocation of energy among growth, reproduction, immune defense, and maintenance.

Aging and Senescence

Evolutionary medicine approaches aging as a consequence of fundamental evolutionary constraints rather than simply as accumulated biological damage.

Natural selection generally acts more strongly on traits influencing survival and reproduction earlier in life than on traits whose harmful effects appear late in life. This can permit biological characteristics with late-life costs to persist.

Antagonistic pleiotropy proposes that genetic variants can be favored when they provide early-life advantages even if they produce later-life disadvantages. Other theories emphasize trade-offs between reproduction and bodily maintenance or the continuation of biological programs beyond the periods in which they originally provided benefits.

Modern research examines cellular senescence, physiological dysregulation, life-history trade-offs, comparative aging, and interventions such as senolytic therapies.

Mental Health, Behavior and Evolutionary Psychiatry

Evolutionary approaches have also been applied to mental health and behavior.

Evolutionary psychiatry investigates why psychological systems associated with anxiety, sadness, vigilance, attachment, social interaction, and threat detection evolved and why they sometimes produce severe distress or dysfunction.

Some apparently maladaptive responses may arise from mechanisms that normally provide benefits under particular circumstances. Threat-detection systems, for example, may produce false alarms because failing to respond to a genuine danger could historically have carried greater costs than responding unnecessarily.

Research has explored depression, grief, anxiety, personality traits, postpartum mental health, sleep disturbances, trauma responses, and social isolation. Evolutionary explanations remain hypotheses requiring empirical testing and do not imply that mental disorders are necessarily adaptive.

Sleep and Human Evolution

Human sleep differs in several respects from sleep patterns observed among other primates.

Evolutionary researchers examine sleep duration, nighttime vigilance, social sleeping arrangements, environmental danger, circadian rhythms, and the possible relationships between sleep and neurodegenerative disease.

The sentinel hypothesis proposes that variation in sleep timing among group members may historically have increased the likelihood that someone remained awake during the night. Comparative research involving industrialized and nonindustrial populations has been used to investigate this possibility.

Evolutionary approaches also explore night terrors and other sleep-related behaviors as possible consequences of older defensive or vigilance mechanisms.

Human Ecology, Culture and Social Environment

Human health is shaped not only by genes and physiology but also by social and ecological environments.

Evolutionary medicine therefore overlaps with anthropology, behavioral ecology, and studies of social determinants of health. Researchers examine kin networks, cooperation, inequality, employment instability, cultural practices, household organization, environmental quality, market integration, and economic change.

Modern environments can alter longstanding patterns of social interaction and resource distribution. Researchers have investigated whether changes in social support, work, family organization, and community structure contribute to stress and disease.

Cultural behaviors can themselves become important ecological forces. Diet, antibiotic use, reproductive practices, tobacco use, sanitation, and other culturally transmitted behaviors can change the selective environments affecting both humans and microorganisms.

Human Evolution and Anatomical Vulnerability

Some health problems reflect compromises associated with the evolutionary history of the human body.

Bipedal locomotion transformed the spine, pelvis, feet, and other anatomical structures. These changes enabled efficient upright walking but may also contribute to back disorders, bunions, childbirth difficulties, and other vulnerabilities.

Carpal tunnel syndrome and similar conditions can also be studied in relation to inherited anatomical structures interacting with modern repetitive activities.

Evolutionary medicine therefore emphasizes that natural selection modifies existing structures rather than designing organisms from scratch.

Comparative and Veterinary Perspectives

Comparisons with other species can reveal both shared biological mechanisms and uniquely human vulnerabilities.

Research involving chimpanzees, birds, mammals, companion dogs, mice, and other organisms has been used to investigate aging, cancer prevalence, immune function, physiology, genetics, and environmental influences on health.

Comparative oncology is particularly important because cancer rates vary dramatically among species despite major differences in body size and lifespan. These patterns may reveal biological mechanisms that suppress or promote cancer.

Evolutionary divergence also helps explain why animal models do not always accurately predict human responses to diseases or medications.

Climate Change and Evolutionary Medicine

Climate change is creating new environments that interact with evolved human physiology.

Heat exposure, water scarcity, changing pathogen distributions, food insecurity, and environmental disruption may affect pregnancy, hydration, infectious disease, and other aspects of health.

Research involving pastoralist populations and endurance athletes has examined physiological responses to heat and water stress. Reproductive-health research has similarly investigated how environmental conditions can affect pregnancy and lactation.

These studies demonstrate how rapidly changing environments can create new challenges for physiological systems shaped under different ecological conditions.

Medical Education and Public Health

Evolutionary medicine advocates argue that evolutionary reasoning should become a more prominent component of medical education.

Studies of medical schools and undergraduate programs have found uneven incorporation of evolutionary concepts into curricula. Educational initiatives have therefore developed frameworks, assessments, teaching resources, and clinical examples designed to improve understanding of evolution among healthcare professionals.

Evolutionary approaches may be particularly useful for explaining antimicrobial resistance, pathogen evolution, genetic variation, reproductive biology, cancer resistance, chronic disease, and differences between human and animal models.

Public-health applications include understanding changing pathogen populations, antibiotic use, environmental transitions, disease ecology, and interactions between human behavior and infectious-disease transmission.

Emerging Directions

Recent evolutionary-medicine research increasingly combines genetics, genomics, anthropology, ecology, microbiology, computational modeling, comparative biology, and clinical research.

Emerging work examines phylogenetic approaches to disease, cancer resistance across species, evolutionary approaches to contraception, airway microbiomes and asthma, somatic evolution in cancer, pregnancy and climate stress, ancient disease through paleopathology, and interactions between culture and biological evolution.

Genomic and computational datasets are also allowing researchers to test evolutionary hypotheses at scales that were previously impossible.

The field is consequently moving beyond broad evolutionary explanations toward increasingly testable predictions and potential clinical applications.

Conclusion

Evolutionary medicine provides a framework for asking why humans become vulnerable to disease as well as how disease occurs. It emphasizes that the human body is the product of evolutionary history rather than an optimally engineered system.

Natural selection operates through trade-offs, historical constraints, environmental interactions, reproductive competition, and changing ecological conditions. These processes can help explain susceptibility to infection, chronic disease, cancer, reproductive complications, aging, mental-health conditions, and other health problems.

The approach is particularly powerful where evolution can be observed directly, including antimicrobial resistance, pathogen evolution, and therapeutic resistance in cancer. It also provides broader frameworks for studying mismatch, developmental plasticity, life-history trade-offs, microbiomes, social environments, and comparative biology.

Evolutionary explanations do not replace molecular, physiological, clinical, or public-health approaches. Instead, they add another level of explanation that can connect mechanisms of disease with the evolutionary histories that produced them. As genomic, ecological, clinical, and comparative datasets continue to expand, evolutionary medicine is likely to play an increasingly important role in understanding both human vulnerability to disease and potential strategies for prevention and treatment.

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Foundations, Theory and History

Recent evolutionary-medicine research increasingly combines genomics, anthropology, comparative biology, and life-history theory to explain variation in human disease susceptibility.
Explores opportunities for evolutionary biology to generate innovations across biomedicine, disease prevention, and public health.
Considers future directions for evolutionary medicine and ways evolutionary reasoning could become more deeply integrated into biomedical science.
Discusses the development of evolutionary medicine and the growing importance of evolutionary explanations within health research.
Reviews progress in the field and highlights emerging opportunities for translating evolutionary biology into health research.
Identifies a consensus set of evolutionary concepts considered especially important for understanding medicine and human disease.
Argues that evolutionary explanations can complement conventional clinical approaches to disease causation, treatment, and prevention.
Examines how ongoing microevolution, historical populations, and changing medical environments can affect contemporary human health.
Provides a broad introduction to evolutionary medicine, including mismatch, genetic variation, reproduction, degenerative disease, host–pathogen interactions, and comparative biology.
Explains how natural selection, developmental plasticity, evolutionary history, and environmental mismatch can influence susceptibility to disease.
Surveys connections between evolutionary biology, genomics, infectious disease, lifestyle, and medical research.
Reviews the contributions of biological anthropology and evolutionary theory to understanding human health, disease, reproduction, and adaptation.
The dawn of Darwinian medicine is a foundational paper arguing that evolutionary explanations can illuminate infection, mismatch, aging, reproduction, and other sources of human vulnerability to disease.

Education, Public Health and Methods

Assessing the effectiveness of the One Paleopathology workshop examines education linking ancient disease evidence with evolutionary approaches to medicine.
Develops and validates an assessment tool for measuring student understanding of evolutionary-medicine principles.
Describes a digital educational resource using mummies, paleopathology, and historical evidence to teach evolutionary medicine.
Reviews evolutionary concepts relevant to pregnancy, lactation, reproduction, microbiomes, and women's health.
Surveys evolutionary-medicine courses and instructors across American undergraduate institutions.
Discusses the relevance of evolutionary medicine to countries facing simultaneous burdens of infectious and noncommunicable disease.
Meta-analysis of variance demonstrates how methods developed in evolutionary biology can reveal treatment effects on variation rather than only average outcomes.
Surveys evolutionary content in medical-school curricula and identifies barriers to teaching evolutionary principles in medicine.
Presents evolutionary concepts that clinicians argue would have strengthened their medical education and biological reasoning.
Shows how medical examples can be used to teach natural selection, common ancestry, adaptation, and evolutionary constraints.
Describes an early approach to incorporating evolutionary medicine into formal medical-school instruction.

Evolutionary Mismatch, Metabolism and Diseases of Modernity

Evolutionary medicine of emunctory functions of the kidney reviews how kidney functions reflect evolutionary pressures involving water, salt, and waste removal.
Reassesses the thrifty genotype hypothesis in light of modern evolutionary mismatch research on obesity, diabetes, and cardiometabolic risk.
Uses life-history and ecological perspectives to reconsider obesity and body composition in prehistoric human populations.
Clarifies different forms of mismatch and develops a framework linking evolutionary, developmental, and physiological explanations.
Reviews interactions among UV radiation, folate, vitamin D, diet, genetics, migration, and the evolution of human pigmentation.
Examines how ecology, cold exposure, and evolutionary history may help explain variation in the metabolic consequences of obesity.
Considers whether explaining lifestyle-related disease through evolutionary mismatch could improve health education and patient understanding.
Reconsiders the evolution of adult milk digestion through life-history theory, dairying, growth, and reproductive fitness.
Links rapid human modification of physical, social, and technological environments with emerging patterns of chronic and infectious disease.
Developmental plasticity: Bridging research in evolution and human health reviews how environmental conditions during development alter adult phenotype and disease risk.
Chronic inflammatory systemic diseases interprets chronic inflammation as persistence of defensive programs that are beneficial during short-term threats.
Developmental contributions to macronutrient selection examines adult dietary behavior among survivors of severe childhood malnutrition.
The blemishes of modern society? Acne prevalence in the Dogon of Mali evaluates acne as a possible disease associated with industrialized environments.
An adaptive response to uncertainty can lead to weight gain during dieting attempts models fat storage as a response to perceived instability in food supply.
Applies evolutionary and neuroendocrine perspectives to chronic inflammation and its metabolic and physiological consequences.
A mitochondrial paradigm of metabolic and degenerative diseases, aging, and cancer links mitochondrial evolution and energetic biology to major modern diseases.

Infection, Immunity, Microbiome and Antimicrobial Resistance

Influence of betel nut chewing on oral microbiome in Papua New Guinea examines cultural behavior as an ecological force shaping microbial communities.
Waning immunity drives respiratory virus evolution and reinfection explores how declining host immunity may favor repeated infection and pathogen evolution.
Models the possibility that diagnostic practices themselves can create selection favoring pathogens that are harder to detect.
Evolution of virulence in emerging epidemics connects mathematical theory with experimental evolution to understand changing pathogen virulence during outbreaks.
Uses a clinical case to illustrate how resistance evolution can progressively undermine antibiotic treatment.
Examines interactions between hygiene, microbial communities, antibiotic exposure, and natural selection for resistance.
Investigates how interventions that change transmission can also change selective pressures acting on infectious pathogens.
Examines how prolonged infections in immunocompromised hosts may influence viral antigenic evolution.
Investigates links among disgust, pathogen-associated sensory cues, and anticipatory immune responses.
Tests whether humans can detect olfactory signals associated with respiratory infection in other people.
Examines theoretical conditions under which vaccination might alter selection on pathogen virulence.
Applies evolutionary bet-hedging theory to variation and uncertainty in innate and adaptive immune responses.
Explores what bacteriophage diversity in nonhuman primates may reveal about microbiomes, pathogens, and therapeutic possibilities.
Reviews fever as an evolved host defense and considers the consequences of routinely suppressing elevated temperature during infection.
Applies evolutionary concepts to the biological and public-health challenges created by the COVID-19 pandemic.
Uses evolutionary medicine to interpret host susceptibility, viral biology, immune responses, and COVID-19 disease patterns.
Does HIV infection increase male sexual behavior? considers whether infection could alter host behavior in ways relevant to pathogen transmission.
Evolutionary perspectives on human behavior during the coronavirus pandemic uses game theory to examine cooperation, risk, and social responses during epidemics.
Old friends meet a new foe explores whether long-standing relationships with parasites and microbes influence inflammatory responses to novel infections.
An African origin for Mycobacterium bovis reconstructs the evolutionary history and geographic origins of a medically important tuberculosis-complex pathogen.
Evidence for height and immune function trade-offs among preadolescents tests life-history trade-offs between growth and immune investment.
Knowledge and practices regarding antibiotics use investigates human behaviors that influence antibiotic consumption and therefore selection for antimicrobial resistance.
Effect of drug dose and timing of treatment on the emergence of drug resistance in vivo in a malaria model examines how therapeutic decisions alter parasite evolution.
Treatment timing shifts the benefits of short and long antibiotic treatment investigates how treatment schedules influence infection control and resistance evolution.
The impact of early life antibiotic use on atopic and metabolic disorders reviews evidence that disturbing developing microbiomes can affect later health.
Conservation analysis of SARS-CoV-2 spike suggests complicated viral adaptation history examines molecular evolution during the transition from animal to human hosts.
Links between metabolic syndrome and the microbiome examines interactions among modern diets, microbial ecology, inflammation, and metabolic disease.
Shows how microbial ecology and evolution can inform transmission tracking, antimicrobial resistance, microbiome research, and clinical practice.
Reviews whether carefully ordered sequences of antibiotics can exploit evolutionary trade-offs and constrain bacterial adaptation.
Reviews evolutionary trade-offs affecting pathogen virulence, transmission, host damage, and disease dynamics.
Describes how evolutionary perspectives on the human genome and microbiome can improve understanding of infectious and chronic disease.
The phylogenomics of evolving virus virulence explains how viral genome sequences can reveal mutations and evolutionary processes associated with changing pathogenicity.
Lower incidence of respiratory infections among iron-deficient children examines the possibility that iron withholding can sometimes function as a defense against pathogens.
Environmental influences on the skin microbiome of humans and cattle in rural Madagascar examines microbial exchange among humans, animals, and shared environments.
Childhood food allergies: An evolutionary mismatch hypothesis examines whether modern infant feeding and microbial environments contribute to rising allergy prevalence.
Trade-offs between acquired and innate immune defenses in humans examines how energetic constraints shape allocation between different immune mechanisms.
The role of respiratory viruses in the etiology of bacterial pneumonia examines ecological interactions among viral and bacterial pathogens.
Cardiovascular disease and type 2 diabetes in evolutionary perspective examines whether loss of long-standing helminth exposure contributes to inflammatory chronic disease.
A deep sequencing tool for partitioning clearance rates following antimalarial treatment identifies parasite variation that can reveal early signs of drug resistance.
Predicting global variation in infectious disease severity explores demographic and ecological factors that might explain geographic differences in disease outcomes.
Association between clinical antibiotic resistance and susceptibility of Pseudomonas examines collateral sensitivity and resistance diversity in cystic fibrosis infections.
Vancomycin gene selection in the microbiome of urban Rattus norvegicus investigates antibiotic-resistance genes in rats living around hospital environments.
Early developmental exposures shape trade-offs between acquired and innate immunity examines how childhood nutrition and pathogen exposure influence adult immune allocation.
Tests an antivirulence strategy designed to weaken bacterial pathogens while reducing evolutionary opportunities for resistance.
Discusses treatment approaches intended to decrease the selective advantages that normally drive antimicrobial resistance.
Investigates how interactions among resistance mutations can influence the fitness and spread of multidrug-resistant tuberculosis.
Evolution of virulence reviews how transmission opportunities, host damage, and natural selection shape pathogen virulence.

Cancer Evolution and Evolution-Informed Therapy

Cancer, collapse, and the politics of somatic evolution examines malignancy as an evolutionary process occurring within complex multicellular systems.
Divergent evolution of hepatocellular carcinoma genomes in chimpanzees and humans compares liver cancer evolution across closely related primate species.
Leveraging comparative phylogenetics for evolutionary medicine explores how phylogenetic methods can help reveal mechanisms of cancer resistance and susceptibility across species.
Life history enlightened therapies uses evolutionary life-history ideas and cell-cycle biology to search for therapeutic targets in hepatocellular carcinoma.
Dual targeting of conserved cell cycle and transcription programs in advanced colorectal cancer explores cancer vulnerabilities shared across evolving malignant cell populations.
Rethinking cancer evolution considers cancer as an information-processing and ecological system rather than only an accumulation of genetic mutations.
The Elephant and the Spandrel examines comparative oncology and cautions against assuming every cancer-protective characteristic of large animals is directly adaptive.
Leveraging selection for function in tumor evolution proposes disrupting tumor-level functional networks rather than focusing exclusively on destroying individual cancer cells.
Proposes viewing tumor progression through selection on functional properties of cancer-cell populations and their microenvironments.
Uses comparative data from birds to investigate how life-history characteristics relate to cancer prevalence.
Uses comparative evolutionary data to examine relationships among germline mutation rates, species biology, and cancer mortality.
Tests an evolutionary hypothesis linking spice use and plant compounds with population-level cancer prevention.
Explores how competition among tumor cells might be manipulated to create evolutionary traps for cancer treatment.
Uses evolutionary modeling to explore strategies for manipulating competition and cooperation within tumors.
A survey of open questions in adaptive therapy examines mathematical, evolutionary, and clinical challenges involved in translating evolution-based cancer treatment into routine care.
Proposes evolutionary and microbiome-related mechanisms that could connect antibiotic exposure with colorectal cancer risk.
Explores relationships among energy allocation, metabolism, activity, life-history trade-offs, and cancer susceptibility.
Reconsiders LINE-1 activity and its possible relationship to early evolutionary and epigenetic changes during carcinogenesis.
Identifying key questions in the ecology and evolution of cancer outlines major research problems where ecological and evolutionary theory can improve understanding of cancer initiation, progression, resistance, and treatment.
Lifetime cancer prevalence and life history traits in mammals uses comparative data to investigate evolutionary explanations for variation in cancer risk.
Explores excess energy availability as a possible unifying mechanism linking several modern lifestyle factors with disease and cancer risk.
Discusses the increasing use of evolutionary theory to understand cancer treatment resistance and improve therapeutic strategies.
Applies evolutionary cooperation theory to growth factors and other shared resources produced by tumor cells.
Explores the rare transmission of maternal cancer cells across the placenta and the evolutionary biology underlying this phenomenon.
Compares hormone exposure under oral contraception with endogenous reproductive hormone patterns from an evolutionary perspective.
Interactions between immune challenges and cancer cell proliferation examines how repeated immune activation could influence cancer dynamics.
Is estrogen receptor negative breast cancer risk associated with a fast life history strategy? explores links between reproductive life history and breast cancer subtypes.
Colon cancer and salicylates considers preventive treatment in light of the evolutionary biology of colorectal cancer.
Clone wars: the evolution of therapeutic resistance in cancer describes treatment resistance as natural selection acting on genetically diverse tumor-cell populations.
Reviews papillomavirus evolution, chronic infection, oncogenicity, vaccination, and the evolutionary ecology of virus-associated cancers.
Examines evolutionary mismatch between modern reproductive patterns and breast-cancer susceptibility by estrogen-receptor status.
Shows that treatment resistance and cancer relapse are fundamentally evolutionary problems and examines their treatment in cancer research.
Adaptive therapy proposes adjusting cancer treatment according to tumor response to preserve drug-sensitive cells and suppress resistant competitors.

Reproduction, Pregnancy, Development and Life History

An evolutionary medicine perspective on the design of non-hormonal contraceptives for women considers reproductive evolution when identifying biological targets for contraception.
Preterm birth, airway microbiome, and the evolutionary origins of asthma links early microbial exposure, premature birth, immune development, and asthma susceptibility.
Climate change, evolution, and reproductive health reviews how heat stress and water insecurity affect pregnancy and lactation.
Physical activity and heat stress shape water needs in pregnant endurance athletes examines the interaction of pregnancy physiology, exercise, thermoregulation, and hydration.
Maternal-fetal conflict and the timing of birth examines childbirth timing as an outcome of partially competing maternal and fetal evolutionary interests.
Proximate and ultimate causes of pregnancy sickness distinguishes physiological mechanisms from evolutionary explanations for nausea and vomiting.
When parental care hurts examines how unusually prolonged parental investment may sometimes produce evolutionary mismatches associated with overparenting.
Vanishing twins, selection in utero, and infant mortality investigates whether selective fetal loss influences population patterns of infant survival.
Birth and household exposures are associated with changes to skin bacterial communities during infancy examines how early environments shape microbial colonization.
Breastfeeding and parents’ socioeconomic status buffer dental developmental stress in female infants uses dental development as evidence of early-life physiological stress.
Reviews evolutionary and physiological relationships among pregnancy, maternal biology, and the intestinal microbiome.
Applies evolutionary conflict theory to pregnancy sickness and the hormone GDF15.
Reassesses evolutionary hypotheses proposed to explain nausea and vomiting during pregnancy.
Connects maternal metabolism, fetal growth, childbirth, and later disease risk within an evolutionary developmental framework.
Examines breastfeeding behavior and mother–infant interactions through evolutionary and anthropological perspectives.
Investigates reproductive trade-offs among energetic conditions, hemoglobin levels, ecology, and ovarian function.
Connects early developmental conditions with epigenetic aging and life-course approaches to health.
Examines childbirth fear, environmental stress, social conditions, and birth outcomes during the pandemic.
Investigates associations among emotional state, obstetric intervention, and birth mode in first-time mothers.
Tests life-history predictions about family environment and variation in pubertal timing.
Develops a population-level approach for studying selective processes operating during fetal development.
Examines genomic imprinting and evolutionary conflict in relation to brown adipose tissue and maternal–offspring energy biology.
Uses cooperative breeding and allocare theory to examine relationships between kin support and maternal mental health.
Reconsiders childbirth mechanics through pelvic anatomy, posture, squatting, and human evolutionary history.
Applies evolutionary conflict theory to placental hormones and potentially competing maternal and fetal interests.
Proposes an evolutionary explanation for patterns of female body-fat distribution in relation to pregnancy and reproduction.
Develops an evolutionary framework for understanding maternal buffering, fetal nutrition, and pregnancy interventions.
Kin-based alloparenting and infant hospital admissions examines whether assistance from relatives influences child health in a modern population.
Immune function during pregnancy varies between ecologically distinct populations shows how local environments can influence maternal immune physiology.
A test of oscillation in the human secondary sex ratio examines evolutionary hypotheses concerning variation in the proportion of male and female births.
Examines human childbirth, pelvic evolution, large neonatal brains, obstetric assistance, and cesarean delivery from an evolutionary perspective.
Time from pre-eclampsia diagnosis to delivery affects future health prospects of children examines developmental consequences of pregnancy complications.
Adiposity, CVD risk factors and testosterone investigates how partnering and fatherhood relate to male reproductive physiology and cardiovascular risk.
Ethnically Tibetan women in Nepal with low hemoglobin concentration have better reproductive outcomes provides evidence for evolutionary adaptation to high altitude.
Local environmental quality positively predicts breastfeeding tests life-history predictions concerning parental investment under harsh environmental conditions.
Do post-reproductive aged females promote maternal health? investigates possible health benefits associated with the presence of older women.
Maternal pelvic dimensions and neonatal size examines whether fetal growth plasticity reflects adaptation to maternal pelvic constraints.
Human reproduction and health: an evolutionary perspective applies life-history theory to fertility, sex hormones, chronic disease, and longevity.
Postnatal depression and reproductive success examines associations between postpartum depression and subsequent fertility.
Maternal investment, life-history strategy of the offspring and adult chronic disease risk connects early developmental conditions with later reproductive strategy and cardiovascular health.

Aging, Sleep, Cognition and Mental Health

How and why does aging occur? Updating evolutionary theory to meet a new era of data examines how new biological, demographic, and computational data can refine classical evolutionary explanations of aging.
Integrates life-history theory, evolutionary trade-offs, metabolic regulation, mismatch, and hyperfunction theories of aging.
Little evidence that posttraumatic stress is associated with diurnal hormone dysregulation in Turkana pastoralists tests relationships between trauma symptoms and endocrine physiology in a non-industrial population.
Assessing subclinical psychopathological and personality traits in a small-scale subsistence society broadens psychiatric research beyond populations living in industrialized societies.
Uses chimpanzees as a comparative model for understanding physiological dysregulation and the evolution of human aging.
Places senescent cells and proposed senolytic treatments within the broader evolutionary biology of aging.
Examines whether modern social environments create mismatches in social support that contribute to perinatal mood disorders.
Tests the hypothesis that variation in sleep timing within groups may historically have helped maintain nighttime vigilance.
Compares adolescent sleep across differing ecological and cultural environments to investigate environmental influences on sleep.
Examines pain behavior, communication, and responses to pain through evolutionary theory.
Evolutionary psychiatry: foundations, progress and challenges argues that psychiatry can benefit from distinguishing proximate mechanisms from evolutionary explanations for vulnerability to mental disorders.
Reviews evolutionary explanations for human susceptibility to Alzheimer's disease, including mismatch, lifespan extension, and antagonistic pleiotropy.
Considers whether night terrors and related sleep behaviors can be better understood through evolutionary defense mechanisms.
Explores heightened vigilance during bereavement as a potentially understandable response within an evolutionary framework.
Does selection for short sleep duration explain human vulnerability to Alzheimer’s disease? explores evolutionary trade-offs linking sleep duration and neurodegeneration.
Borderline Personality Disorder: Why “fast and furious”? applies life-history and evolutionary perspectives to behavioral and emotional characteristics associated with the disorder.
Shining evolutionary light on human sleep and sleep disorders uses comparative primate biology to interpret distinctive features of human sleep.
Explaining the sex difference in depression with a unified bargaining model investigates evolutionary explanations for sex differences in depressive symptoms.
Adaptive behavior can produce maladaptive anxiety models how otherwise useful threat-learning mechanisms can generate excessive anxiety.
Opposite differential risks for autism and schizophrenia examines relationships between parental age and risks for neurodevelopmental and psychiatric conditions.

Human Ecology, Social Determinants and Behavior

Daughters-in-law and mothers-in-law in lowland rural Nepal investigates household power relationships and their consequences for women's health.
An evolutionary perspective on the use of betel nut and its effects on health outcomes examines cultural practices, adaptation, and the health consequences of betel-nut use.
High water turnover, hydration status, and heat stress among Daasanach pastoralists investigates physiological adaptation to a hot semi-arid environment.
Examines how economic and lifestyle integration can alter environmental exposures, infectious disease ecology, and chronic disease risk.
Investigates how lifestyle transitions in a pastoralist population are associated with changes in cardiometabolic health.
Uses evolutionary models of resource acquisition to explore relationships between inequality, competition, and human health.
Uses companion dogs as a comparative model for investigating relationships among social environments, health, and aging.
How evolutionary behavioural sciences can help us understand behaviour in a pandemic examines evolved social psychology relevant to disease avoidance and cooperation.
Fish consumption is associated with school performance in children in a non-linear way investigates diet, development, and cognitive outcomes.
Biological normalcy distinguishes statistical normality from biologically and culturally defined ideas about healthy human variation.
Culture, behavior and health highlights the role of socially transmitted behaviors in creating health environments and disease risks.
Investigates associations between environmental instability, employment disruption, stress, metabolic health, and chronic disease.
The low prevalence of female smoking in the developing world examines whether reproductive and fetal-protection considerations help explain sex differences in tobacco use.

Comparative Biology, Anatomy and Cross-Species Medicine

A test of the Archaic Homo Introgression Hypothesis for the Chiari malformation type I evaluates whether inherited archaic-human anatomical traits contribute to a modern neurological disorder.
Spondylolysis and spinal adaptations for bipedalism examines back pathology as a possible consequence of evolutionary changes required for upright walking.
Evolutionary Medicine: Why do humans get bunions? connects foot disorders with bipedal anatomy, footwear, and environmental mismatch.
Evolutionary medicine: Carpal tunnel syndrome considers anatomical constraints inherited from primate and human evolutionary history.
Human fibroblasts display a differential focal adhesion phenotype relative to chimpanzee examines cellular differences that may contribute to species-specific disease vulnerability.
Evolutionary change in physiological phenotypes along the human lineage compares human physiology with other primates to identify unusually derived characteristics.
Explains how evolutionary divergence between mice and humans can contribute to failures of animal models to predict human disease and drug responses.