Overview of Migraine Headache
A migraine headache is classified as a form of vascular headache. It is caused by the enlargement of blood vessels. This phenomenon is known as vasodilatation and it causes the nerve fibres that coil around the large arteries of the brain to release chemicals. The release of chemicals is mainly because of the enlargement of the blood vessels that stretches the nerves that coil around them. The release of chemicals causes inflammation, pain, and further enlargement of the artery. This enlargement of the arteries further magnifies the pain.
These headaches typically last from 4 to 72 hours. The frequency of occurrence varies from daily to less than once per year. Migraine affects approximately 15% of the population. It affects the women population more than men. More than 80% of people suffering from migraine (called migraineurs) have other members in the family with the same ailment.
Ask your physician
How are headaches assessed
What are the causes of headaches and how can we prevent it
| Videos related to Diabetes |
Written by: Healthplus24 team
Date last updated: August 15, 2011