Headache is a common condition characterized by pain or discomfort in the head or neck. It can be caused by a variety of factors, including tension, dehydration, sinusitis, and migraine.

Tension headaches are the most common type of headache and are often caused by stress or muscle tension in the neck and shoulders. Symptoms can include a dull, aching pain that feels like a tight band around the head.

Dehydration headaches are caused by a lack of fluids in the body and can be prevented by staying hydrated.

Sinus headaches are caused by inflammation in the sinuses and can cause pain and pressure around the eyes, cheeks, and forehead.

Migraine headaches are a type of headache characterized by intense pain, often accompanied by nausea and sensitivity to light and sound.

Treatment for headaches depends on the underlying cause and may include over-the-counter pain medications such as acetaminophen or NSAIDs, as well as prescription medications for migraines.

Prevention of headaches involves identifying and avoiding triggers, such as certain foods, stress, or lack of sleep, and maintaining healthy habits such as staying hydrated and getting regular exercise.