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When TV watching drives you to early grave

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Washington: Couch potatoes, beware! Binge watching TV may be the best, but apparently, it might kill you.

A team of researchers found that adults, who spent at least five hours or more in front of the television a day, were two-and-a-half times more likely to die from a blood clot in the lungs.

From 1988 to 1990, Japanese researchers asked 86,024 participants, age 40-79, how many hours they spent watching TV. Over the next 19 years, 59 participants died of a pulmonary embolism.

Researchers found that compared to participants who watched TV less than 2.5 hours each day, deaths from a pulmonary embolism increased by:

70 percent among those who watched TV from 2.5 to 4.9 hours

40 percent for each additional 2 hours of daily TV watching; and

2.5 times among those who watched TV 5 or more hours.

“Pulmonary embolism occurs at a lower rate in Japan than it does in Western countries, but it may be on the rise,” said corresponding author Hiroyasu Iso from the Osaka University. “The Japanese people are increasingly adopting sedentary lifestyles, which we believe is putting them at increased risk.”

Authors noted that the risk is likely greater than the findings suggest. Deaths from pulmonary embolism are believed to be underreported because diagnosis is difficult. The most common symptoms of pulmonary embolism – chest pain and shortness of breath – are the same as other life-threatening conditions, and diagnosis requires imaging that many hospitals are not equipped to provide.

Researchers accounted for several factors that might have influenced findings, including obesity, diabetes, cigarette smoking and hypertension. After the number of hours spent watching TV, obesity appeared to have the next strongest link to pulmonary embolism.

First author Toru Shirakawa said the findings may be particularly relevant to Americans. Other studies indicate U.S. adults watch more television than Japanese adults.

“Nowadays, with online video streaming, the term ‘ binge-watching’ to describe viewing multiple episodes of television programs in one sitting has become popular,” Shirakawa said. “This popularity may reflect a rapidly growing habit.”

Authors said people who watch a lot of TV can take several easy steps to reduce their risk of developing blood clots in their legs that may then move to their lungs.

“After an hour or so, stand up, stretch, walk around, or while you’re watching TV, tense and relax your leg muscles for 5 minutes,” said Iso, noting this advice is similar to that given to travelers on long plane flights. He added that drinking water may also help and, in the long run, shedding pounds if overweight is likely to reduce risk.

The study recorded participants’ viewing habits before computers, tablets and smartphones became popular sources of information and entertainment. Authors believe new studies are needed to determine the effect of these new technologies on pulmonary embolism risk.

The study appears in American Heart Association’s journal Circulation. (ANI)

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