Teenagers (and occasionally younger children) can develop a habit of pulling their hair from their scalp, eyebrows, or eyelashes. This habit is known medically as trichotillomania and sometimes called ...

Headaches can be caused by many triggers, including alcohol (especially red wine), certain foods (such as meats that contain nitrates), poor sleep, poor posture, skipped meals, and stress. The most ...

Synesthesia is an extraordinary neurological condition in which a person simultaneously and involuntarily perceives one sense with another. There are an estimated 35 types of synesthesia that people ...