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...
Narcolepsy is a disabling sleep disorder that causes extreme daytime sleepiness, sudden loss of muscular control when in an emotional state... Read more »
According to a new study that will be published in the August 2011 issue of Archives of General Psychiatry, some people can indeed react to... Read more »
One of our members asked the question, "Is there an ADHD medication out there that does not loss of appetite?" ADHD medications - mostly... Read more »
Source: ADAM Encyclopedia
In the United States, about 7 million females and 1 million males suffer from eating disorders.AgeEating disorders occur most often in adolescents... Read more »
Source: HealthCentral Encyclopedia
Dieting and concern about body image are an American pastime. At any given moment, some 50 million Americans are on a weight-loss regimen. Although... Read more »
Source: ADAM Encyclopedia
Loss of hair; Alopecia; Baldness; Telogen effluviumHome CareHair loss from menopause or childbirth often returns to normal 6 months to 2 years... Read more »
A team of scientists at Columbia University Medical Center have identified eight genes linked to the development of the hair loss disorder alopecia... Read more »
Source: ADAM Encyclopedia
CausesMany different factors can trigger menstrual disorders, such as hormone imbalances, genetic factors, clotting disorders, and pelvic diseases.... Read more »