Tension headache is a problem in which you can have pain in head, face and neck region. The main causes of tension headaches are stress, huger, lack of sleep and eyestrain. Spending a long time on a computer or phone can lead to this problem. If you sit on a desk with a poor posture, the upper body muscles become very tight and it leads to strain and tension. Exercise is the best way to prevent and cure tension headaches. You can do stretching exercises, which are very easy to do. We will explain some easy stretches that you can do. Following are some simple stretches to relieve and prevent tension headaches.