by Samuel Z. Goldhaber
Tense negotiations have been under way for three hours without a break, and they aren't over by a long shot. By the end of the day, after factoring in your commute, you'll have been sitting for a dozen hours with hardly any chance to move around. This amount of immobility can set the stage for a blood clot to form in a vein deep in the leg—a deep-vein thrombosis (DVT).
Most people think of DVT as a risk associated with long flights. But a new study from Wellington Hospital in New Zealand places the problem in the workplace, too. It found that employees who sat for several hours without getting up—at a meeting, say, or even at their desks—were more likely to develop DVT than those who moved about more often.
This doesn't mean an epidemic of DVT in the workplace, but it does raise a concern for those predisposed to the condition—for example, people who frequently take long trips (eight hours or more), are advanced in age, have recently had surgery, are overweight, or have a clotting disorder or cancer. DVT afflicts up to 600,000 Americans a year.


Full article: http://blogs.harvardbusiness.org/health-and-well-being/2009/05/do-take-that-break.html
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