Exercise headaches
DEFINITION
Exercise headaches occur during or after sustained, strenuous exercise. Some activities associated with exercise headaches include running, rowing, tennis, swimming and weightlifting.
Doctors divide exercise headaches into two categories. Primary exercise headaches are usually harmless, aren’t connected to any underlying problems and can often be prevented with medication.
Secondary exercise headaches are caused by an underlying, often serious problem within the brain — such as bleeding or a tumor — or outside the brain — such as coronary artery disease. Secondary exercise headaches may require emergency medical attention.
CAUSES
Primary exercise headaches
The exact cause of primary exercise headaches is unknown. One theory is that strenuous exercise dilates blood vessels inside the skull.
Secondary exercise headaches
Secondary exercise headaches are caused by an underlying problem, such as:
- Bleeding in the area between the brain and the thin membranes that cover the brain (subarachnoid hemorrhage)
- Abnormalities in a blood vessel leading to or within the brain
- Cancerous or noncancerous tumors
- Obstruction of cerebrospinal fluid flow
- Sinus infection
- Structural abnormalities in the head, neck or spine
SYMPTOMS
Primary exercise headaches
These headaches:
- Are usually described as throbbing
- Occur during or after strenuous exercise
- Affect both sides of the head in most cases
Secondary exercise headaches
These headaches may cause:
- The same symptoms as primary exercise headaches
- Vomiting
- Loss of consciousness
- Double vision
- Neck rigidity
Primary exercise headaches typically last between five minutes and 48 hours, while secondary exercise headaches usually last at least a day and sometimes linger for several days or longer.
When to see a doctor
If you experience a headache during or after exercise, consult your doctor. Call your doctor right away if the headache begins abruptly or if it’s your first headache of this type.
