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1 .This is Scientific American 60-Second Health. I'm Dina Fine Maron. Got a minute?
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2 .Hey kids, here's a good reason to work up a sweat:
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3 .when young people exercise for an hour each day it also helps boost their brain power.
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4 .That's according to a study of more than 200 kids in the journal Pediatrics.
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5 .Seven, eight and nine year-olds were randomly selected to enroll in an after-school exercise program or be placed on a wait list.
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6 .The exercisers performed much better on intellectual tests.
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7 .And there was a dosage effect: kids who spent more time in the program performed even better than kids who were enrolled in the program but had spotty attendance.
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8 .Government guidelines already recommend that everyone aged 6 to 17 engage in an hour or more of moderate- and vigorous-intensity physical activity daily,
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9 .but many kids still do not meet this threshold.
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10 .Better cognitive capabilities could be a selling point for more exercise.
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11 .The study could not tease apart how much increased physical fitness versus social interactions in the exercise program may have contributed to better accuracy on cognitive tasks.
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12 .But other work has suggested that exercise is better for cognition than social interactions alone.
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13 .Regardless, a workout that offers both is a win-win.
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14 .Thanks for the minute, for Scientific American 60-Second Health. I'm Dina Fine Maron.
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