
Leading experts agree that sitting can cause as
many, if not more, negative health effects as smoking. Sitting for long
periods of time has been shown to raise the risk of developing diabetes,
experiencing a cardiovascular event or getting certain types of cancer.
A 14-year study involving nearly 185,000
participants published in the American Journal of Epidemiology concluded
that time spent sitting was independently associated with mortality.
Perhaps most startling: This result was true regardless of the
participants’ physical activity levels. The risks of sitting have become
clear enough that the Medical Journal of Australia published an article
declaring that prolonged sitting at a desk may be “hazardous” and
urging doctors and employers to prescribe or consider alternatives.
Sitting — especially sitting in chairs — takes a
heavy toll on health in part because it essentially lets your body shut
down. When you plop down in a chair, your muscles disengage, your hips
tighten and your spine becomes nearly rigid. Blood flow while in the
sitting position is sluggish, which can impact brain function, heart
health and even raise the risk of blood clots. Your chair also can cause
a dramatic drop in production of fat-burning enzymes and calorie burn.
We simply were not designed to sit in chairs all
day. We evolved to be upright and active. When we rise from our chairs,
it’s like a wake-up call to our bodies. Standing requires more
engagement of your muscles and gets your blood flowing. You can become
more alert and energized. Your hips are more open and your spine is free
to twist.
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