The primary risk factor of migraines is genetics. Researchers have found that 70% to 80% of people with this condition have a family history of migraines.

Migraines affect more women than men. Nearly 75% of people afflicted are women. There seems to be some correlation between female hormones and migraines. Examples of such hormones are estrogen and progesterone. Throughout a woman’s cycle, levels of these hormones increase and decrease, and cause migraines in those who are migraine-prone.

About 5 – 10% of children suffer from migraines. In contrast to adults, boys and girls suffer equally, but are less likely to have migraines when they reach adulthood. Some girls experience migraines more frequently after puberty, but puberty is not the cause of migraines.

The majority of people suffering from migraines are between 15 and 55 years of age.

There are medical conditions that have a tendency to be present in people with migraines. These include depression, epilepsy, anxiety, high blood presser and stroke. They do not cause migraines nor do they increase the likelihood of a person developing a migraine. Yet, these problems may accompany migraines.