Anand A. Gersappe, M.D., Ph.D.

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Adjusting to Daylight Savings Time

March 09, 2012
What are the effects of Daylight Savings on your sleep schedule, and what can you do to reduce these effects? Here are some tips:


 

 

 

Change your clock this weekend: it may help your ticker

November 02, 2011

Here’s a great reason to remember to turn your clocks back and sleep in an extra hour this weekend: it may be good for your heart.

More than 1.5 billion people reset their clocks every year, turning clocks backward by an hour in the fall and forward by an hour in the spring. These transitions can disrupt internal biologic rhythms and influence the duration and quality of sleep. But does losing or gaining that one hour have health consequences? A 2008 report in the New England Journal of Medicine by Dr. Janszky and colleagues suggests that it does. The authors showed that there is a significant increase in the daily rate of heart attack in the first few days after we “spring ahead” and get an hour less of sleep, but that in the first few days after we “fall back” and gain an hour of sleep, there are fewer heart attacks.

Sleep deprivation carries a high risk. Sleeping less than 5...