A headche is pain in the head which almost everyone feels at one time or another. Almost half of all people have a headache, physicians normally cannot see any causes.
There are two main types of headaches-tension headaches and migraines. Tension headaches cause a mild to strong pain in the head. Many people describe such headaches a tightening feeling. some headaches cause a dull pain that can last for hours. They occur anywhere from the front to the back of your head. other people fell a sharp, throbbing pain in their head. About 20% of all headaches are migraines. They are strong headaches that can cause extreme pain. they can last as long as a couple of ays. warning signs like neusea, vomiting and seeing flashes of light sometimes occur shortly before migraines attack, such a forewarningis called an aura. Migraines are often passed down to you from your parents and grand parents.
Headaches are disorder of the nervous system. Even though the exact causes of headache are not clear most of them are caused by the widening of blood vessels combined with chemicals that are set free around them. Nervous send pain message to your brain. there are many factors that can lead to a headache. He were some of them : not enough sleep, not enough water, strees, watching TV or looking at a computer screen for a long time, smooking, alcohol, coffee, tea and certain foods.
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