Why Do I Wake up with a Headache Every Morning?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 21st, 2026.
Morning headaches can result from several factors including sleep disorders, dehydration, or underlying health conditions. Sleep apnea affects over 22 million Americans and is a leading cause of morning headaches due to oxygen deprivation during sleep. Other common culprits include teeth grinding (bruxism), sleeping in awkward positions that strain neck muscles, or rebound headaches from overusing pain medications. Blood sugar fluctuations from not eating for 8-12 hours overnight can also trigger headaches. If you experience morning headaches more than twice weekly for several weeks, consult a healthcare provider to rule out sleep disorders, high blood pressure, or other medical conditions requiring treatment.
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