Why Does Sleep Deprivation Cause Headaches?

Headaches are primarily caused by stimulation of pain-sensitive tissues in the head—such as blood vessels, nerves, and meninges. Insufficient sleep can lead to excessive cerebral fatigue, impair brain function, hinder the timely clearance of free radicals and metabolic waste from the brain, cause cerebral hypoxia and reduced cerebral blood flow, and contribute to symptoms such as neurasthenia. It is recommended to maintain a balanced diet, engage in appropriate physical activity, consume foods rich in protein and vitamins, and alleviate mental stress.