This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. And I'm Steve Ember. Today we tell about headaches, the head pain that strikes almost everyone at some time.
Do you ever get a headache? If your answer is yes, you are among thousands of millions of people worldwide who develop the condition. The National Headache Foundation says more than forty five million Americans suffer chronic headaches. At first, they experience severe pain in the head. The pain goes away, but returns later.