Typically, bright light therapy requires sitting near a specialized lightbox that emits 10,000 lux of cool-white fluorescent ...

“Exposure to brighter nights and darker days ... fluorescent bulbs and electronics such as laptops and cellphones. “Bright light in the evening suppresses our sleep hormones and activates ...

Researchers looked at 85,000 people between 40 and 69 years old and the study suggests people with bright light exposure past midnight may have an increased risk of developing Type 2 diabetes.

Long exposures can be used to capture more light when it's too dark to get the correct exposure at fast shutter speeds. The ...