Moreover, it is essential for the migraine sufferer to get enough sleep, as fatigue can provoke a headache. In fact, fatigue is one of the most common triggers of migraine headaches.
Caffeine is also a stimulant, which can add a letdown feeling after the effect wears off.
This kind of headache is common in heavy coffee drinkers. If a person normally consumes large amounts of caffeine-containing substances during the week, a withdrawal, rebound headache may result on weekends or holidays if similar amounts are not consumed. The pain-producing mechanism of the headache is the vasodilation of cranial arteries. The headache may be a persistent, generalized one that lasts for weeks. A gradual withdrawal from caffeine-containing substances can help to bring these headaches under control.