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1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 .Winter is high time for heart attacks.
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3 .And while snow shoveling can pose a danger to your heart, the winter heart attack trend holds true in places that never see snow.
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4 .So researchers in sunny Brazil investigated another cardio culprit: cholesterol.
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5 .They tracked cholesterol levels in a quarter million people living outside Sao Paulo--mostly middle-aged men and women.
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6 .And they found that levels of LDL, or bad cholesterol, shot up during the South American winter.
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7 .The change pushed 18,000 people with borderline cholesterol levels over the threshold.
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8 .The finding was presented at a recent meeting of the American College of Cardiology.
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9 .Why the wintertime spike?
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10 .People tend to exercise less in winter, and to eat more fatty foods.
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11 .We also get less vitamin D from sunlight, and studies suggest vitamin D may improve the ratio of good to bad cholesterol.
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12 .The biggest concern, the researchers say, is that one annual cholesterol check could over or underestimate your actual levels,
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13 .and have an outsized influence on whether or not your doctor prescribes meds.
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14 .The study doctors offer their own wintertime prescription: exercise, eat healthy and get more sun.
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15 .Might keep you young at heart.
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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.
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