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.
Multiple studies have now confirmed that vitamin D deficiency increases the risk of obesity. Stock up on vitamin D with some fun in the sun this summer.
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.