Most of us have experienced a headache that seems like it will last forever. One that makes your head pound and puts you in a generally bad mood. While there are a lot of different kinds of headaches, most of us have experienced what is known as a tension headache. This type of headache is the most common and over half of all adults experienced one this last year. They affect as many as 80% of U.S. adults at some point in their lives, according to WebMD. Read on if you suffer from these headaches and are wondering how to get rid of a tension headache.