|Tension headaches are the most common type of headaches, accounting for approximately 90 percent of all headaches experienced. The pain experienced is often general and bilateral, meaning that the pain occurs on both sides of the head, and in some cases the pain causes mild pain at the back of the neck and at the base of the skull.
The pain of tension headaches is usually mild to moderate, and often described as having a band squeezing the head, however, in some cases; constant tension headaches may begin to interfere with daily activities. Other symptoms may include fatigue, insomnia, irritability and muscle weakness or pain especially in the scalp, neck and shoulders.
Tension headaches differ between people and while they usually last between 4-6 hours, they can last anywhere between 15min to a week. They can also be classified as episodic or chronic. Episodic headaches are diagnosed when the individual experiences fewer than 15 headaches in a month, while chronic tension headaches will be diagnosed when the individual experiences more than 15 headaches in one month.