cause of migraine headache

All headaches are not migraines. Overall, an estimated one headache in three is a real headache. A headache for example can be due to the flu, with the impression of a head heavy and painful. There are also simple tension headache. But in practice, how to make a difference? Between migraine and tension headache, the criteria are well defined and based on the International Classification (International Headache Society). Click Here!