Posts Tagged ‘ television ’

Too Much TV May Lower Sperm Counts, Study Finds

Wednesday, February 6th, 2013

Men who watch more than 20 hours of television each week have a 44 percent lower sperm count than men who watch less TV, a new study from the Harvard School of Public Health has found.  More from NBC News:

Twenty-plus hours per week? Who has so much free time they can devote such a fat chunk of their lives to clicker-clutching couch vegging? Apparently, many of us, said Jorge Chavarro, senior author of the study and assistant professor of nutrition and epidemiology at Harvard.

“It’s not difficult to imagine. That’s about three hours a day,” Chavarro said. “Let’s say somebody comes home from work at 7 and turns on the TV; they only need to watch TV until the evening news and they’ve watched three hours.”

Starting in the 1990s, studies have suggested a reduction in sperm counts among men in various cities, including in Europe and the United States. It’s become more clear in the past six years.

“Most people have speculated these are due to higher use of environmental chemicals,” Chavarro said.

“One of the things that has been overlooked during same six-year period: there also have been vast changes in how people live their lives, including how people eat, watch television, move around – whether they are active or not. Relatively little attention has been paid to these factors (when it comes to sperm counts). We wanted to look at that.”

Image: Man watching TV, via Shutterstock

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Fussy Babies Offered More TV, Study Finds

Thursday, January 10th, 2013

Fussy infants are more likely to be put in front of a television in a parent’s attempt to calm and occupy them, a new study published in the journal Pediatrics has found.  The finding is despite the American Academy of Pediatrics’ recommendation that children not be shown television until age 2.  More from Time.com:

In the study, published in the journal Pediatrics, the researchers analyzed data from 217 African-American mother and infant pairs from the Infant Care and Risk of Obesity Study. At 3, 6, 9, 12, and 18 months after birth, the infants’ mothers reported on their babies’ temperament—how fussy or complacent they were—as well as their own TV viewing habits, including how long the TV was on during the day and how often they fed their babies while watching TV. Overall, mothers spent a significant amount of time watching television, and reported that they spent quite a bit of time feeding their infants in front of the TV as well. Infants just 3 months old were exposed to an average of nearly three hours of TV or videos daily, and nearly 40% of the youngsters were exposed to three hours of TV every day by the time they were a year old.

More active and fussier infants were more likely to spend extended periods of time in front of the TV. The exposure was also higher among obese mothers, especially those with the fussier kids, leading the researchers to suggest that the television may serve as an easy entertainment strategy.

The scientists were also able to find some factors that contribute to fewer hours in front of the screen, however. Moms with a high school diploma or any additional education were less likely to have TVs in their infants’ room, and less likely to keep the television on during meals.

“In the last decade or so there has been a lot of attention paid to parenting style and care giving. One component has to do with feeding and focus placed on the feeding environment,” says Margaret E. Bentley, Associate Dean of Global Health at the University of North Carolina at Chapel Hill’s Gillings School of Global Public Health and the principal investigator of the study. “Half of the time, infants are being fed with the television on, which is a feeding strategy we do not recommend.”

Eating in front of the television can lead to unhealthy dining habits that linger into childhood and adulthood, Bentley and her colleagues say, since mothers feeding infants while watching TV might be distracted and not as alert to subtle cues babies send when they feel full, which can lead to overfeeding.

Image: Baby watching television, via Shutterstock

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TV in Kids’ Bedrooms Carries Health Risks, Study Finds

Wednesday, December 12th, 2012

Children who have televisions in their bedrooms have higher risks of developing health problems including obesity, diabetes, and heart disease, a new study published in the American Journal of Preventive Medicine has found. More from NBC News:

“Specifically, youngsters ages 5 to 18 who had TVs in their rooms were up to 2.5 times more likely than others to have bigger waists and more fat mass. Those who watched TV more than five hours a day were at twice the risk for fat around their internal organs, a dangerous precursor for disease.

“It’s really troubling to see these kids with fat around their heart and liver,” said Amanda Staiano, a scientist with the Pennington Biomedical Research Center in Baton Rouge, La.

Staiano and her colleagues knew that previous studies had shown a link among bedroom TVs, longer TV viewing and being overweight or obese, which affects two-thirds of U.S. youth. But in a country where 70 percent of kids have TVs in their rooms, according to a 2010 study, Staiano said they wanted to understand exactly where the kids were adding fat, and whether they were at risk for conditions such as heart disease and diabetes.

“We wanted to see kind of a more precise relationship between TV and health,” said Stainao, who studied 369 children and teens in Louisiana. Her findings are reported in the American Journal of Preventive Medicine.

They took the kids’ height, weight and waist measurements, logged their blood pressure, analyzed their blood and examined the fat deposits in their bodies using special scanners, among other exams.

Nearly 66 percent of the young people in the study had TVs in their rooms and about a third watched at least five hours of TV a day. There wasn’t a distinction by age, so even the youngest kids — 5-year-olds — had their own TVs, Staiano said.

Those with bedroom TVs had the higher odds for being in the top tiers of kids with extra belly fat, bigger waists, greater risk of heart disease and diabetes and elevated triglycerides, or fat in their bloodstream.

While Stainano’s study couldn’t say whether bedroom TV and long hours in front of the screen actually causes the extra fat and disease risk, it renews the debate about whether TVs should be allowed in kids’ rooms at all.

The American Academy of Pediatrics frowns on the practice, saying children’s TV viewing should be limited to less than two hours a day, ideally in a central location with parents watching, too.”

Image: Kids watching TV in bed, via Shutterstock

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Effects of ‘Secondhand TV’ Examined in New Study

Tuesday, October 2nd, 2012

The amount of television that children watch each day has been well studied, but a new study is looking at the effects indirect exposure to televisions that are on in the backgr0und at home and in other settings.  From CNN.com:

According to a nationwide study, a much bigger proportion of kids’ TV exposure comes indirectly, from television that’s on in the background while they’re doing other activities.

The average child between the ages of 8 months and 8 years absorbs nearly four hours of this so-called background or “secondhand” TV each day, the study found. And this indirect exposure, by detracting from play, homework, and family time, may have possible consequences for kids’ well-being.

This is the first study to quantify background television in children, and the high number is “surprising,” says lead author Matthew Lapierre, an assistant professor of communication studies at the University of North Carolina Wilmington.

“From a research perspective, I would be very concerned,” Lapierre says. “I think (background TV) is something that researchers need to spend more attention to, to understand and unpack.”

Image: Baby watching television, via Shutterstock

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Study: TV Time Hurts Self-Esteem, But Not for White Boys

Thursday, May 31st, 2012

The amount of time children spend in front of television screens, their self-esteem is affected…unless the child is a white male.  These are the findings of a new study published in the journal Communication Research by Nicole Martins, an assistant professor of telecommunications at Indiana University, and Kristen Harrison, professor of communication studies at the University of Michigan.

Martins and Harrison surveyed 400 pre-adolescent children of different races in the Midwest over the period of a year.  From a release announcing their findings:

“Regardless of what show you’re watching, if you’re a white male, things in life are pretty good for you,” Martins said of characters on TV. “You tend to be in positions of power, you have prestigious occupations, high education, glamorous houses, a beautiful wife, with very little portrayals of how hard you worked to get there.

“If you are a girl or a woman, what you see is that women on television are not given a variety of roles,” she added. “The roles that they see are pretty simplistic; they’re almost always one-dimensional and focused on the success they have because of how they look, not what they do or what they think or how they got there.

“This sexualization of women presumably leads to this negative impact on girls.”

With regard to black boys, they are often criminalized in many programs, shown as hoodlums and buffoons, and without much variety in the kinds of roles they occupy.

“Young black boys are getting the opposite message: that there is not lots of good things that you can aspire to,” Martins said. “If we think about those kinds of messages, that’s what’s responsible for the impact.

“If we think just about the sheer amount of time they’re spending, and not the messages, these kids are spending so much time with the media that they’re not given a chance to explore other things they’re good at, that could boost their self-esteem.”

Martins said their study counters claims by producers that programs have been progressive in their depictions of under-represented populations. An earlier study co-authored by her and Harrison suggests that video games “are the worst offenders when it comes to representation of ethnicity and gender.”

Image: Boy watching television, via Shutterstock.

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