Headache Overview

What Is It?

The International Headache Society classifies headaches into two main types: primary headache and secondary headache.

Primary headache includes:

  • tension-type headaches

  • migraines

  • cluster headaches.

Typically, tension-type headaches cause mild to moderate pain, usually on both sides of the head. There is a pressing or tightening sensation. It is not pulsating and is not accompanied by nausea. The headache does not get worse with routine physical activity.

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