The root of your hair is like a miniature world. Discover the causes of hair loss and possible ways to prevent—or even reverse it.
In the 1970s, an unusual side effect was observed among hypertensive patients taking minoxidil—excessive hair growth across different parts of their bodies.
Two dermatologists were invited to investigate the phenomenon. They applied the drug topically to patients’ arms and found that the treated areas grew noticeably thicker hair.
