Super-sonic signal: A signal from Transit-Amplifying Cells (TACs) activates stem cells in the hair follicle, researchers have found. Both types of cells appear in green…
Ingrown hair, also known as “razor bumps,” are a common skin condition, particularly in people whose hair has the tendency to curl back or grow…
Hair analysis has become standard practice for determining whether someone has abused illicit drugs. But some experts have questioned whether current methods to wash away…