It might sound strange, but taking higher doses of vitamin D or sitting in the sun may not always be the best way to boost your vitamin D levels. For some people losing weight might do the trick.
Researchers from the University of Maryland’s School of Medicine have determined that just one hour of bright light therapy significantly reduces depression and depressed moods.
While ubiquitous in nature, melanin, which provides the coloring found in hair, skin, eyes, feathers, scales, etc., is an especially important substance as far as the human condition is concerned. After all, melanin's role in determining skin color makes it the primary physiological basis for racial differentiation among humans.