So I recently told you about five surprising things that may cause a headache [1], so I figured we may as well take it a step further and look into what causes a migraine — headache's evil brother — too. If you suffer from migraines then you may be interested to learn these simple migraine triggers [2]:

• Not getting enough to eat.
• Not getting enough sleep.
• Exposure to bright lights or loud noise.
• Fluctuating hormone levels, such as during your period.
• Changes in the weather.
• Emotional factors, such as stress or anxiety.
• Chocolate, alcohol, nicotine, or foods with additives such as MSG.

Source [3]