Lighting has a powerful effect on our circadian rhythms, mood, and overall quality of sleep. As more people become aware of how their environment affects rest, a common question arises: what is the ...

Invisible light beyond the range of human vision plays a vital role in communication technologies, medical diagnostics, and ...

Red light therapy has been found to be helpful for skin health, wound healing, hair growth among people with alopecia and pain management. Some have claimed it’s also useful for sleep, but research ...