Concerns over exposure to blue light has predicated several solutions to decreasing blue light exposure, including disabling or attenuating blue LEDs in displays, color shifting displays towards yellow, or wearing glasses that filter out blue light.
Blue Light and Mental Health. Nighttime exposure to blue light was linked to depressive symptoms in animal studies. But exposure to blue light during the day may have the opposite effect. Its been used to treat seasonal affective disorder, or SAD .
Blue light does have some benefits. It is important for mood, alertness, and thinking. You may benefit from managing how much blue light you are exposed to, especially through digital devices. Blue Light: Several Impacts on Health, Both Good & Bad. smartphone in bed.
Blue Light and Sleep: What You Should Know. Well cut to the chase: Blue light does suppress melatonin, the sleep hormone. In the morning, thats a good thing for your energy levels (and why natural light exposure is often recommended for a healthy circadian rhythm).
Blue light counts more, but it's your total exposure that makes the real difference. It turns out the solution starts the moment you wake up. Every morning during my test, I sat in front of a lamp that looks like a prop from a 1980s science fiction movie.
