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1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 .I'm running over the Williamsburg Bridge, in New York City.
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3 .It connects Brooklyn to downtown Manhattan.
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4 .It's one of my favorite places to run,'cause the views are great.
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5 .Until you look at all the taxis and trucks spewing exhaust.
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6 .Always makes me wonder, is all that pollution essentially undoing any health boost I'm getting from the run?
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7 .A new study of more than 50,000 Danish adults suggests I might be ok.
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8 .Of course, being Denmark, more than two-thirds of them regularly rode a bike—and half played sports.
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9 .As you might expect, both activities lowered the Danes' risk of death during the 17-year study period.
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10 .But that effect held true even for the Danes exercising in the most polluted parts of Copenhagen, suggesting that the short-term heavy intake of pollutants during exercise is just a small proportion of their overall exposure to pollution, and thus, does not diminish the benefits of exercise.
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11 .The results are in the journal Environmental Health Perspectives.
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12 .Of course, Copenhagen has pretty clean air, even by European standards.
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13 .So these results might not translate to, say, Beijing.
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14 .And the researchers still advise exercising in green spaces, parks, and other road-free areas if possible.
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15 .But hey, I'd have to head all the way to midtown Manhattan for that.
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16 .
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17 .For Scientific American 60-Second Science. I'm Christopher Intagliata.
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