Switch to daylight saving time may be linked to increase in heart attacks

For those of you who dislike daylight saving time, here’s another reason to add to your list. Reuters reports that research presented at the American College of Cardiology meeting suggests that the switch to daylight saving time may be linked to an increase in heart attacks.

HealthDay reports that investigators “analyzed 2010-2013 data from hospitals in Michigan and found that they admitted an average of 32 heart attack patients on any given Monday.” But “there was an average of eight additional heart attack patients (25 percent more) on the Monday immediately after Daylight Saving Time began.”

MedPage Today reports that the data also indicated that “regaining that hour in the fall when daylight saving time ends was associated with a 21% lower relative risk of acute MI treated with PCI on the Tuesday after the time change compared with other Tuesdays.”

These findings were presented at a medical conference. They should be considered preliminary as they have not yet undergone the “peer review” process, in which outside experts scrutinize the data prior to publication in a medical journal.

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