Yale researchers have discovered the source of signals that trigger hair growth, an insight that may lead to new treatments for baldness. The researchers identified stem cells within the skin's ...

While men with male pattern baldness still have stem cells in follicle roots, they need signals from within the skin to grow hair. Until now, the source of those signals that trigger hair growth ...

Getty Images Interactions between epithelial cells, which form the outer layer of the skin, and connective tissue, or mesenchyme, trigger hair follicle formation as an embryo develops. This study ...