Blue light isn’t the main source of eye fatigue and sleep loss – it’s your computer
The Conversation 10/11/2019
One way to think about blue light and potential retinal damage is to consider the Sun. Sunlight is mostly blue light. On a sunny afternoon, it’s nearly 100,000 times brighter than your computer screen. Yet, few human studies have found any link between sunlight exposure and the development of age-related macular degeneration, a retinal disease that leads to loss of central vision.
Indoor carbon dioxide levels could be a health hazard, scientists warn
The Guardian 7/08/2019
...there is a growing body of research suggesting levels of CO2 that can be found in bedrooms, classrooms and offices might have harmful effects on the body, including affecting cognitive performance.