5 ways daylight saving time messes with your health

  • Heart trouble

    Changing the clocks ahead an hour can take a toll on your heart. A recent study found that daylight saving time transitions may be tied to an increased risk of a common type of stroke.

    Researchers from Finland analyzed over a decade of stroke data and found that the overall rate of ischemic stroke -- which accounts for the majority of stroke cases and is caused by a clot blocking blood flow to the brain -- was 8 percent higher during the first two days after a daylight saving time transition.

    Cancer patients and people over the age of 65 appeared to be at a higher risk of stroke immediately after the time change, with a 25 percent and 20 percent increased risk, respectively.

    A 2014 study published in the journal Open Heart also found that setting clocks ahead one hour in the spring was also associated with higher short-term risk of heart attack.

    While both studies only show an association -- not a cause and effect relationship -- and did not look at the potential reasons for the link, experts believe sleep disturbances play a role.

    "The circadian rhythm influences numerous bodily functions including metabolic, physiologic, and behavioral changes," Dr. Teshamae Monteith, an assistant professor of clinical neurology and director of the headache program at the University of Miami, told CBS News. "Although confirmatory studies are needed, I believe this study supports the link between circadian rhythms and vascular events."

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    Ashley Welch covers health and wellness for CBSNews.com