Study finds 7% of global population experience migraine and 9% a tension-type headache on any given day
Almost one in six people around the world have a headache on any given day, with about half of those experiencing a migraine, researchers have found.
Headache disorders can be painful and debilitating and have myriad causes, from stress to over-use of medications such as painkillers. Now a large scale review has highlighted just how common such conditions are.
