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Sitting Too Much: How Bad Is It?

Excess Sitting Has Been Linked to a Host of Health Problems. Here's How to Reduce Your Sitting Time.
WebMD Health News

April 7, 2014 -- The studies just keep coming. Sitting our life away, it seems, may be very bad for our health and even our life expectancy.

Just since January, researchers have reported that sitting for long hours is linked to:

  • Worse mental health
  • A higher risk of death from heart disease and other causes
  • A higher risk of being disabled

The new studies add even more weight to earlier research suggesting that too much sitting is bad -- even if you get regular exercise.

Experts say they still don't know for sure which comes first. Does too much sitting trigger poor health, or is it the other way around?

They also say we may need to think about sitting and exercise as two separate behaviors, each contributing on its own to our health. So while that 1-hour jog is great for you, it may not undo the 8 hours sitting at your desk.

WebMD asked three experts to weigh in on what we know about sitting and how we can reduce our sitting time.

What health problems have too much sitting been linked to?

''It has been linked to cardiovascular events like heart attack, heart disease death, overall death, and death from cancer," says Andrea LaCroix, PhD, director of the Women's Health Center of Excellence at the University of California, San Diego.

In her recent study, she found that older women who reported the most sitting time were more likely to die during the 12-year follow up. Those sitting more than 11 hours daily were at the highest risk, she reported in the American Journal of Preventive Medicine.

Sitting time has also been linked with high blood pressure, obesity, bad cholesterol, and too much belly fat.

The dangers of excess sitting have been discussed for decades, but research has picked up steam in the last 5 years, says Jacqueline Kerr, PhD, associate professor of family and preventive medicine at UC San Diego. She studies how to help people sit less.

Why is sitting too much linked with health problems?

Scientists can't explain it. And they emphasize that a link doesn’t prove that too much sitting causes these diseases.

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