Such a good little wife, repeated the patronising potentate, again patting my hand with an air of understanding all about it, really an excellent little wife. View in context These potentates had two principal anxieties: the one, that no foreigner should enter Italy under arms; the other, that none of themselves should seize more territory.
One leading theory for the cause of migraines is âcortical spreading depression.â This wave of brain activity that sweeps over the brain, can be seen on an MRI and is blamed for migraine aura and other migraine symptoms. Others believe hyperactivity in the brain stem causes migraines. Because migraines are difficult to control, many people with this disorder often take medication regularly. Overuse of medication can also lead to migraines.
15 Migraine Triggers: What Causes A Migraine? For millions of people who get regular migraines, pain and discomfort in an unfortunately regular occurrence. Migraines are a type of headache, but they differ in many ways. Migraines start with vasodilation, which is the enlargement of the blood vessels in the brain. This causes, âthe release of chemicals from nerve fibers that coil around the large arteries of the brain.â This physical effect cannot explain all the extreme symptoms and scientists think itâs a more complex process.