Article updated and reviewed by Michael S. Lehrer, MD, Clinical Assistant Professor, Department of Dermatology, University of Pennsylvania on April 18, 2005.
Each hair grows in cycles—it grows, rests, and then falls out. Usually, this cycle repeats approximately yearly. At any time, about ninety percent of a person's scalp hair is growing, a phase that lasts between two and six years. Ten percent of the scalp hair is in a resting phase that lasts between two and three months. At the end of its...
I always thought the saying “Hair today, gone tomorrow” related to men. That’s not the case. It turns out that as we go through... Read more »
I admit that I’ve been spoiled. I was born with thick wavy hair that is basically wash and go. I don’t have to blow dry or curl it to... Read more »