Freedom and restraint seem like opposing forces, but to Yu Deng, they go hand in hand. Take the poem he’s just pulled up on his computer screen: a dense forest of Chinese characters corralled into ...

Testosterone can cause chin and neck hairs in people of all sexes. But chin hair growth in females may indicate an underlying condition, such as a hormone imbalance. Hair is a distinct part of what ...

New studies are shedding light on how the tests could eventually transform treatment. By Dana G. Smith and Pam Belluck Research presented this week at the Alzheimer’s Association International ...