What is migraine headache

The next topic in healthcaretipss blog is What is migraine headache.
A migraine headache is a form of vascular headache. Migraine headache is caused by a combination of vasodilatation (enlargement of blood vessels) and the release of chemicals from nerve fibers that coil around the blood vessels. During a migraine attack, the temporal artery enlarges.  Enlargement [...]