The commonest medical complaint is headache, yet the brain itself cannot directly feel pain. Although we know what can trigger headaches off, we still do not fully understand how they are produced. In our ignorance, sufferers of severe headaches such as migraine can be faced with a bewildering variety of uncertain remedies.
Geoff Watts examines recent research which may help to solve the mystery of how headaches are caused, and presents a guide to the most effective treatments, some neglected and some new.
