Nonlinear optical dynamics—intensity-dependent response of light upon interaction with materials under high-intensity light ...

Study found that people who slept in the brightest conditions had a 56% greater risk of developing heart failure. New ...

Imagine working with special cameras that capture light your eyes can’t even see—ultraviolet rays that cause sunburn or infrared heat signatures that reveal hidden writing. Or perhaps using ...

Nighttime exposure to bright light is associated with a higher risk of cardiovascular disease, but there’s plenty you can do about it.