It throbs, stabs, or pounds in the head – more than 30 million people suffer from debilitating headaches on a regular basis. Most could be helped, but often even doctors are overwhelmed by the diagnosis. Many sufferers are forced to treat themselves and, despite taking pain-relieving medication, rarely experience a pain-free day.

Quarks & Co accompanies four affected individuals to a less painful life and explains why, in most cases, therapy is a very personal matter.