In the summer, reindeer’s tapetum lucidum—a mirror-like layer at the back of their eye—is a luminous gold streaked through with turquoise, iridescent like a golden opal. But in the winter ...

Herbs like He Shou Wu, Dang Gui, Ginseng, Ligustrum, and Rehmannia are believed to stimulate hair growth, nourish the scalp, and restore vitality. Combining these herbs with scalp massage and ...

Tang Center for Herbal Medicine Research, The Pritzker School of Medicine, University of Chicago, Chicago, IL 60637, USA Department of Anesthesia and Critical Care, The Pritzker School of Medicine, ...