What are the risks of
sitting too much? - Answer from James A.Levine M.D,Ph.D
Researchers
have linked sitting for long periods of time with a number of health concerns,
including obesity and metabolic syndrome — a cluster of conditions that
includes increased blood pressure, high blood sugar, excess body fat around the
waist and abnormal cholesterol levels.
Too
much sitting also seems to increase the risk of death from cardiovascular
disease and cancer.
One
recent study compared adults who spent less than two hours a day in front of
the TV or other screen-based entertainment with those who logged more than four
hours a day of recreational screen time. Those with greater screen time had:
·
A nearly 50 percent increased risk of death from any cause
·
About a 125 percent increased risk of events associated with
cardiovascular disease, such as chest pain (angina) or heart attack
The
increased risk was separate from other traditional risk factors for
cardiovascular disease, such as smoking or high blood pressure.
Sitting
in front of the TV isn't the only concern. Any extended sitting — such as
behind a desk at work or behind the wheel — can be harmful. What's more,
spending a few hours a week at the gym or otherwise engaged in moderate or
vigorous activity doesn't seem to significantly offset the risk.
Rather,
the solution seems to be less sitting and more moving overall. You might start
by simply standing rather than sitting whenever you have the chance.
For
example:
·
Stand while talking on the phone or eating lunch.
·
If you work at a desk for long periods of time, try a standing
desk — or improvise with a high table or counter.
Better
yet, think about ways to walk while you work:
·
Walk laps with your colleagues rather than gathering in a
conference room for meetings.
·
Position your work surface above a treadmill — with a computer
screen and keyboard on a stand or a specialized treadmill-ready vertical desk —
so that you can be in motion throughout the day.
The
impact of movement — even leisurely movement — can be profound. For starters,
you'll burn more calories. This might lead to weight loss and increased energy.
Even
better, the muscle activity needed for standing and other movement seems to
trigger important processes related to the breakdown of fats and sugars within
the body. When you sit, these processes stall — and your health risks increase.
When you're standing or actively moving, you kick the processes back into
action.
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