The tension headaches are one of the most common forms of headaches. The tension headaches can occur when the patient also has a migraine. The tension headache represent almost 90% of all headaches. Approximately 3% of the population suffers from chronic tension-type headache. Episodes the tension headache is defined as the tension headache occur less than 15 days a month, while chronic tension headaches occur 15 or more days a month for at least 6 months. The tension headache can last from minutes to days or even months, although a typical voltage head lasts 4-6 hours. Other causes include eye strain, fatigue, alcohol, excessive smoking, excessive consumption of caffeine, sinus infection, nasal congestion, unspecific, colds and flu. The tension headaches are not associated with structural abnormalities in the brain. The tension headaches result of the contraction (tense) neck and scalp muscles. One reason for this muscle contraction is a response to stress, depression, head injury, or anxiety.
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