Norwegian surveys of more than 68,000 people show that being sedentary may increase the risk of developing frequent headaches.
Over an 11-year period, researchers found that subjects who never exercised were 14 percent more likely to develop non-migraine headaches than exercisers. Participants who reported pre-existing headaches were more likely to be physically inactive.
Study authors say protection against headaches is a good reason for people to lead a more active lifestyle.