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    Obesity, Smoking Linked to Teen Migraines

    Study Shows Lack of Exercise Also May Also Increase Chances of Migraines in Teenagers
    WebMD Health News
    Reviewed by Laura J. Martin, MD

    Aug. 18, 2010 -- Teens are more likely to have chronic headaches or migraines when they are overweight, smoke cigarettes, or get little or no exercise, new research shows.

    Teenagers in the study with all three negative lifestyle factors had a more than threefold greater likelihood of having frequent, severe headaches than normal-weight, active teens who did not smoke.

    Headaches are a common complaint among teenagers, with 5% of teenage boys and almost 8% of teenage girls in one nationwide study reporting frequent migraines. In another study of older teens in Poland, 28% reported having had a migraine headache.

    While obesity, smoking, and other lifestyle factors have been shown to influence the frequency and severity of chronic headaches in adults, the new study, published in the journal Neurology, is among the first to explore the relationship in teenagers.

    Obesity, Smoking, and Headaches

    The study is the first to examine the individual impact of specific negative lifestyle factors like obesity and smoking, says study researcher John-Anker Zwart, MD, PhD, of the University of Oslo.

    "We were surprised by how many teenagers with headaches smoked or were overweight or physically inactive," Zwart tells WebMD. "We were also surprised that the impact of these negative lifestyle factors seemed to add up."

    The research included almost 6,000 students in Norway between the ages of 13 and 18 interviewed about their recent headache history. They also were asked if they smoked and how much they exercised.

    Roughly one in five teens (19%) said they were smokers, 16% were overweight, and 31% reported exercising less than twice a week.

    Overall, about a third of the girls (36%) and one-fifth of the boys (21%) reported having recurrent headaches within the past year.

    More than half (55%) of the overweight, sedentary teens who smoked reported recent frequent headaches, compared to one in four teens with none of these lifestyle factors.

    Compared to normal-weight, active, nonsmoking teens, overweight teens, and teens who smoked were 40% and 50%, respectively, more likely to have frequent headaches. Exercising less than twice a week was associated with a 20% increase in the likelihood of frequent headaches.

    It is not clear from the research if the negative lifestyle factors caused the frequent headaches or if they act more as triggers in already vulnerable teens.

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