A migraine is usually a moderate or severe headache that causes a throbbing pain on one side of the head. Many people who suffer from migraines also show symptoms of photosensitivity, light-headedness, nausea and sickness.
Migraines are a prevalent health condition that affects 1 in 5 women and 1 in 15 men. It is common for them to begin in early adulthood, however, they can also start earlier than this. Some people who suffer from migraines will experience them several times a week, whereas others may go years between each migraine episode.
The exact cause of migraines remains unknown, however, it is thought that they are a result of chemical, nerve and blood vessel changes in the brain with sufferers reporting many different triggers. Almost half of those who suffer from migraines have a family member or close relative with the condition, suggesting that genes could also be a cause.