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Mayo study links smoking ban to drop in heart attacks

A new report shows a dramatic decrease in heart attacks and cardiac deaths after a ban on smoking in workplaces in Olmsted County. "We're going to recommend that secondhand smoke be considered a sixth risk factor for coronary disease," said a doctor involved in the study.
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A new report shows a dramatic decrease in heart attacks and cardiac deaths after a ban on smoking in workplaces in Olmsted County. "We're going to recommend that secondhand smoke be considered a sixth risk factor for coronary disease," said a doctor involved in the study.

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Mayo researchers attribute drop in heart attacks to smoke-free workplaces

Researchers at the Mayo Clinic say heart attacks in Olmsted County dropped by one-third after Minnesota adopted a law banning smoking in all workplaces, including bars and restaurants. The leader of Mayo's study tells Reuters other risk factors -- cholesterol, blood pressure, obesity -- stayed the same, leaving the reduction in second hand smoke as the apparent explanation for the decline.

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