The Sun appeared blue, at times even violet or green, casting an eerie light across landscapes already gripped by an unseasonable chill. Temperatures plummeted, crops failed, and confusion spread ...

Blue light is a high-energy light that the eyes absorb from computers, smartphones, LED lights, and fluorescent lights. The sun is the biggest source of blue light. On a sunny day, it's 100,000 ...

Spending time basking in the sun may be more important than you think ... And as the morning light emerges, melatonin levels decrease. Serotonin levels increase when you're exposed to bright ...