What causes headaches after physical exertion?

Generally, headaches after physical exertion may be caused by reasons such as lack of sleep, dehydration, migraine, cervical spondylosis, or hypertension. Symptomatic treatments such as general care or medication may be needed. If discomfort occurs, it is recommended to seek medical attention promptly and undergo appropriate treatment under a doctor's guidance. Detailed explanations are as follows:

1. Lack of Sleep

Extended periods without sufficient rest can leave the brain and body in a fatigued state, with cerebral blood vessels in a constricted condition, thereby increasing intracranial pressure and causing headache. Symptoms may include fatigue and difficulty concentrating. It is recommended to maintain a regular sleep schedule and ensure 7-8 hours of adequate sleep daily.

2. Dehydration

Excessive sweating during physical exertion without timely fluid replacement can easily lead to dehydration. Dehydration causes blood concentration, reduced blood volume, lowered blood pressure, and insufficient cerebral blood supply, which can result in headache, possibly accompanied by thirst, dark yellow urine, and fatigue. It is recommended to replenish fluids by drinking water in small amounts frequently, avoiding excessive water intake at once.

3. Migraine

Physical exertion, stress, lack of sleep, and other factors may trigger migraines. During exertion, the body's stress response may cause the brain to release various chemical substances, such as serotonin, which affect blood vessel constriction and dilation, inducing headaches. Symptoms may include nausea, vomiting, and sensitivity to light or sound. It is recommended to take medications such as ibuprofen tablets, indomethacin tablets, or nimodipine tablets as directed by a physician to alleviate symptoms.

4. Cervical Spondylosis

Prolonged work in poor posture may cause cervical spine damage. When the cervical spine is affected, protrusion of intervertebral discs or bone spurs may compress nerve roots or the vertebral artery, affecting cerebral blood supply and causing headaches. Symptoms may include neck pain, arm numbness, and finger tingling. It is recommended to take medications such as chlorzoxazone tablets, eperisone hydrochloride tablets, or sodium naproxen tablets under a doctor's guidance for treatment.

5. Hypertension

During physical exertion, the body's metabolic rate increases, requiring the heart to pump more oxygen and nutrients, leading to elevated blood pressure. Under hypertensive conditions, blood vessel walls endure greater pressure and are prone to damage, which can cause headaches, possibly accompanied by palpitations, chest tightness, and blurred vision. It is recommended to take medications such as nifedipine tablets, methyldopa tablets, or captopril sustained-release tablets under a doctor's guidance for treatment.

After daily physical exertion, applying a warm towel to the forehead, neck, or temples at a comfortably warm temperature may help promote blood circulation and alleviate headache symptoms.