Infiltrator Posted August 16, 2011 Share Posted August 16, 2011 WATCHING TV for six hours a day could shave five years off your life. New Australian-based research has found growing roots on the couch could do as much damage as smoking and lack of exercise, the Courier-Mail reported. Experts have previously linked sedentary behaviour with a higher risk of death from heart attack or stroke. The latest research published by the British Journal of Sports Medicine is the first, however, to study the impact of watching too much TV on life expectancy. Experts used previously published data on the link between TV viewing time and death from analysis of the Australian Diabetes, Obesity and Lifestyle Study. This was combined with Australian national population and mortality figures for 2008, to construct a "lifetime risk framework". Three years ago, Australians aged over 25 watched an estimated 9.8 billion hours of TV. Researchers calculated every hour of watching shortened the viewer's life expectancy by about 22 minutes. Based on these figures and expected deaths from all causes, the authors calculated an individual who watched an average six hours of TV a day over the course of their life, could expect to die five years earlier than someone who watched no TV. Separate research has shown lifelong smoking can shorten life expectancy by four years for those aged over 50. Using the same risk framework designed to monitor the impact of too much TV, the study calculated just one cigarette could cut 11 minutes from smokers lives - equal to watching 30 minutes of TV. "These findings suggest that substantial loss of life may be associated with prolonged TV viewing time among Australian adults," the reports authors found. "Because TV viewing is a ubiquitous behaviour that occupies significant portions of adults leisure time, it's effects are significant for overall population health." VicHealth acting executive manager Irene Venins said the latest research came as no surprise. She said the negative impacts of prolonged periods sitting at a desk at work were well documented and the would be no different at home. "The proliferation of computers around the office have contributed to prolonged sitting , which in turn is a key contributor to chronic heart disease, Type 2 diabetes and osteoporosis." Ms Venins said Australians should engage in a minimum of 30 minutes of physical activity a day, or face the consequences down the track. "It's time to stand up for our health," she said. Web source: http://www.news.com.au/technology/too-much-tv-has-same-health-effects-as-smoking-and-lack-of-exercise-australian-research-finds/story-e6frfrnr-1226115622419 Quote Link to comment Share on other sites More sharing options...
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