Finasteride and minoxidil (for men) and minoxidil (for women) have the best level of evidence for medicines used to treat inherited hair loss.footnote 1, footnote 2 How well finasteride or minoxidil works depends on your age and the location of the hair loss. These medicines don't work for everyone, and you should not expect to regrow a full head of hair.
Research is looking into connections between hair loss and other health issues. While there has been speculation about a connection between early-onset male pattern hair loss and heart disease, a review of articles from 1954 to 1999 found no conclusive connection between baldness and coronary artery disease. The dermatologists who conducted the review suggested further study was needed.
See a doctor. While it may be easy to treat hair loss that's caused by stress or other physical or emotional shock, other types, especially those caused by medical conditions, require expert attention. Do not self-medicate. A medical test is necessary to determine the real cause of your hair loss. A medical diagnosis is important in order to rule out other factors that might be the cause of your hair loss. On the surface, it's easy to attribute hair loss to stress or the lack of sleep, but it is highly possible that the hair loss may be caused by an unknown or undetected condition related to hormones or genetics. With the right diagnosis, you'll be able to get the right medication and course of treatment.