There are more than 300 different causes of headaches, ranging from carbon monoxide intoxication to thyroid disease to brain tumors. Some men even get headaches at the point of orgasm during sex—not exactly the kind of throbbing they had in mind. “You’re supposed to be feeling good and all at once you get hit over the head with this headache,” says George H. Sands, M.D., assistant professor of neurology at Mount Sinai Medical Center in New York City.
But the overwhelming majority—more than 90 percent—of headaches among men fall into three...
