We can develop a tension headache because of stress, eye strain or poor posture among other things. Although most people experience these headaches only occasionally, tension headaches can also occur several times a week. Such chronic tension headaches should be discussed with your doctor. According to the National Institute of Neurological Disorders and Stroke, tension headaches are related to contractions of the muscles of the head and neck. In such cases, changing pillows and making a conscious effort to relax and periodically stretch the head and neck muscles while reading or working can be helpful.
Tension headaches can also develop in response to stress or anxiety.
In such cases, efforts to reduce stress through yoga or other exercise can be helpful. Take a hot shower. Get enough rest or sleep. Take time away from things that are stressful. This could mean anything from taking a brief walk to going on a long vacation.