Each year, about 90 percent of the global population suffers from at least one headache, ranging from mild to chronic. WHO even mention the headaches are most rare diseases are diagnosed and treated.

About 40 percent of people suffer from headaches severe headache, recurrent, or not terhanankan. The cause of headache itself very much, but most often is due to stress and nasal congestion. Even so there are several causes of headache are rarely predictable. What is it?

1. 3D movies and television

Film and television that has the technology of three-dimensional (3D) is now in vogue. In fact, the images in the film can cause eye strain and headache triggers.

"The illusion that we see in 3D movies is not calibrated the same in the brain as well as the eye sees. Consequently the brain work harder and in some people it will cause pain in the head," said Friedman Dr.Deborah, ophthalmologist at the University of Rochester Medical Center , New York, USA.

2. Chewing gum

Chewing gum for a long time will cause pressure on the joints and muscles of the jaw bones meetings with skull head, triggering pain. In addition, the candy that contain artificial sweeteners such as aspartame can also trigger headaches.

3. Electromagnetic pollution

Are you close to the settlement of a high voltage power source? Or your bed close to electronic equipment such as television, computer, or radio? If so, electromagnetic pollution coming from these objects can cause headaches.

4. Sedative

Some types of pain medication aka painkiller can cause headaches because it contains a combination of substances including caffeine. The habit of taking pain relievers can cause relapse effects disappear once the effects of the medicine. Therefore make it a habit to take a single pain reliever, such as aspirin or ibuprofen.

5. Weather

The study, published in the journal Neurology, said hot weather and low barometric air pressure will trigger a headache.

6. Sex

Headache arising after intercourse can be caused by sexual activity itself or because there is not a fault condition is detected, such as an aneurysm.

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