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Conversely, pushing the clocks back an hour to Standard Time Nov. 1 reduces the risk, albeit to a lesser extent, maintains a study published in the New England Journal of Medicine. Since 1987, scientists have examined how the incidence of myocardial infarction has varied with the semi-annual clock shifts.
CLOCK SHIFTS AFFECT RISK OF HEART ATTACK Anonymous USA Today; Mar 2009; 137, 2766; Docstoc pg. 6 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
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