Navigation Links
Too Much TV May Take Years Off Your Life
Date:8/16/2011

By Steven Reinberg
HealthDay Reporter

MONDAY, Aug. 15 (HealthDay News) -- Spending your days in front of the television may contribute to a shortened lifespan, a new study suggests.

Researchers in Australia found that people who averaged six hours a day of TV lived, on average, nearly five years less than people who watched no TV.

For every hour of television watched after age 25, lifespan fell by 22 minutes, according to the research led by Dr. J. Lennert Veerman of the University of Queensland.

But other experts cautioned that the study did not show that TV watching caused people to die sooner, only that there was an association between watching lots of TV and a shorter lifespan.

Though a direct link between watching TV and a shortened lifespan is highly provocative, the harms of TV are almost certainly indirect, said Dr. David L. Katz, director of the Prevention Research Center at Yale University School of Medicine.

"As a rule, the more time we spend watching TV, the more time we spend eating mindlessly in front of the TV, and the less time we spend being physically active," Katz said. "More eating and less physical activity, in turn, mean greater risk for obesity, and the chronic diseases it tends to anticipate, notably diabetes, heart disease and cancer."

Another explanation for the possible link may be that people who watch excessive amounts of TV "are lonely, or isolated, or depressed, and these conditions, in turn, may be the real causes of premature mortality," he added.

The report was published in the Aug 15 online edition of the British Journal of Sports Medicine.

In the study, researchers used data on 11,000 people aged 25 and older from the Australian Diabetes, Obesity and Lifestyle Study, which included survey information about how much TV people watched in a week. Researchers also used national population and mortality figures.

In 2008, Australian adults watched a total of 9.8 billion hours of TV. People who watched more than six hours of TV were in the top 1 percent for TV viewing.

The statistics suggest that too much TV may be as dangerous as smoking and lack of exercise in reducing life expectancy, the researchers said.

For example, smoking can shorten of life expectancy by more than four years after the age of 50. That represents 11 minutes of life lost for every cigarette and that's the same as half an hour of TV watching, the researchers said.

Without TV, researchers estimated life expectancy for men would be 1.8 years longer and for women, 1.5 years longer.

"While we used Australian data, the effects in other industrialized and developing countries are likely to be comparable, given the typically large amounts of time spent watching TV and similarities in disease patterns," the researchers noted.

Dr. Gregg Fonarow, associate chief of cardiology at the David Geffen School of Medicine at University of California, Los Angeles, said that "there is increasing evidence that the amount of time spent in sedentary activity such at TV watching, distinct from the amount of time spent in purposeful exercise, may adversely impact health."

And although participating in a regular exercise program can help, it may not be enough to offset the risks of spending too much of the rest of the day -- while at work or at home -- getting no exercise whatsoever.

"Staying active and reducing time spent sedentary may be of benefit in reducing the risk of cardiovascular disease and may be considered as part of a comprehensive approach to improve cardiovascular health," Fonarow added.

Dr. Robert J. Myerburg, a professor of medicine at the University of Miami Miller School of Medicine, added that "a sedentary lifestyle can reduce life expectancy."

Myerburg isn't sure why sitting around is not good for your health. "It's better to look at it from a positive prospective," he said. "That is: a physically active lifestyle is protective."

More information

For more information on exercise and health, visit the U.S. National Library of Medicine.

SOURCES: David L. Katz, M.D., M.P.H., director, Prevention Research Center, Yale University School of Medicine, New Haven, Conn.; Gregg Fonarow, M.D., associate chief, cardiology, David Geffen School of Medicine, University of California, Los Angeles; Robert J. Myerburg, M.D., professor, medicine, University of Miami Miller School of Medicine; Aug. 15, 2011, British Journal of Sports Medicine, online


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. U.S. Women Using Dangerous Weight-Loss Pill 2 Years After Recall
2. Getting Along With Coworkers May Add Years to Your Life
3. Use of CT scans in emergency rooms increased 330 percent in 12 years
4. Study: Inherited Alzheimers Detectable 20 Years Before Symptom Onset
5. Inherited Alzheimers detectable 20 years before dementia
6. No increase in commonest preventable cause of intellectual disability over 20 years
7. Family meals remain important through teen years, expert says
8. Religious Identity Remains Constant in Teen Years: Study
9. Years of Air Pollution May Be Tied to Uncontrolled Asthma
10. Too Little Sleep in Preschool Years May Predict ADHD
11. Deaths and major morbidity from asbestos-related diseases in Asia likely to surge in next 20 years
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/9/2016)... ... February 09, 2016 , ... Dr. Rassouli, cosmetic dentist ... whitening is among the most popular cosmetic procedures in dentistry today, but the cost ... can put them at risk of teeth whitening-related damage. For a limited time, Dr. ...
(Date:2/9/2016)... ... , ... Two renowned photographers, Robert Caplin (New York, NY) and Peter Lockley ... 14-19, 2016, hosted by Four Seasons Resort Maui at Wailea as part of the ... 2015, the Maui Photo Expedition workshop will once again consist of on-location ...
(Date:2/9/2016)... ... 09, 2016 , ... Shark Finds and Kevin Harrington, and the Product Managers of ... GRIP-DRY is a newly patented product that has solved some of the basic problems golfers ... early morning dew or right after a rain shower, might understand the struggle of placing ...
(Date:2/8/2016)... , ... February 08, 2016 , ... ... with BASF Human Nutrition into the Food & Beverage and ... been BASF’s channel partner throughout Canada and USA geographies east of the Rocky ...
(Date:2/8/2016)... Angeles, CA (PRWEB) , ... February 08, 2016 , ... A man who has struggled ... of Freedom Laser Therapy , was determined to find solutions to his problems – ... of Inventors Digest is ready to introduce his breakthrough inventions to the world ...
Breaking Medicine News(10 mins):
(Date:2/9/2016)... 2016  Landauer, Inc. (NYSE: LDR ), a ... monitoring, outsourced medical physics services and high quality medical ... 2016 first quarter ended December 31, 2015. ... First Quarter Highlights , Revenue of $36.5 million ... 2015 , Domestic Radiation Measurement services revenues increased 2.8% ...
(Date:2/9/2016)... -- Sangamo BioSciences, Inc. (NASDAQ: SGMO ), the ... fourth quarter and full year 2015 financial results ... genome editing," said Edward Lanphier, Sangamo,s president and ... technology leads the therapeutic genome editing field and ... move our ground-breaking genome editing programs through IND ...
(Date:2/9/2016)... QGEN ; Frankfurt Prime ... Genomics to develop and promote comprehensive solutions for ... --> QGEN ; Frankfurt Prime Standard: QIA) ... develop and promote comprehensive solutions for next-generation sequencing ... QIAGEN N.V. (NASDAQ: QGEN ; Frankfurt Prime ...
Breaking Medicine Technology: