Common Causes of Waking Up With A Headache, And How To Relieve It
People can wake up with a headache for various reasons, including dehydration, migraine, sleep apnea, and bruxism when someone grinds or clenches the teeth during sleep. Treatment will depend on the reason for the headache. Many people with migraine experience headaches that begin in the early hours of the morning. However, if a person has never had migraine headaches before, there may be another cause.