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Study links social media use to poor body image
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A new study from the University of Pittsburgh found that the more some people use social media sites like Facebook, the worse they felt about their bodies and appearance. - photo by Chandra Johnson
Parents sometimes think magazines, movies and reality TV are the biggest influencers of a childs body image. But researchers at the University of Pittsburgh School of Medicine have found a link between teens and poor body image many might not expect: Social media.

Social media combines many of the visual aspects of traditional media with the opportunity for social media users to interact and propagate stereotypes that can lead to eating and body image concerns, study author Jaime E. Sidani said in a press release.

The study sampled more than 1,700 people between the ages of 17 and 32 to determine social media use habits and found that the people who spent the most time with social media were more than twice as likely to report body concerns and putting them at greater risk for eating disorders like anorexia, bulimia or binge-eating.

Sidanis findings support what other researchers have found over the years that, when used too much or overemphasized in a childs life, social media can influence how a child thinks about their relationships, their identity and self-worth, and even how what moral values they deem important.

However, Sidani also said more research was needed to specify if subjects felt more prone to disordered eating and dissatisfaction because of exposure to social media or because they were finding support on various social media platforms.

Conversely, people who have eating and body image concerns might then be turning to social media to connect with groups of people who also have these concerns, co-author Brian Primack said in the press release. However, connecting with these groups for social support could inhibit recovery because of the desire to continue being a part of the shared identity such social media groups foster.
Its toxic: New study says blue light from tech devices can speed up blindness
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A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers. - photo by Herb Scribner
It turns out checking Twitter or Facebook before bed is bad for your health.

A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers.

That process can lead to age-related macular degeneration, which is a leading cause of blindness in the United States, according to the researchs extract.

Blue light is a common issue for many modern Americans. Blue light is emitted from screens, most notably at night, causing sleep loss, eye strain and a number of other issues.

Dr. Ajith Karunarathne, assistant professor in the UT Department of Chemistry and Biochemistry, said our constant exposure to blue light cant be blocked by the lens or cornea.

"It's no secret that blue light harms our vision by damaging the eye's retina. Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop, he said.

Macular degeneration is an incurable eye disease that often affects those in their 50s or 60s. It occurs after the death of photoreceptor cells in the retina. Those cells need retinal to sense light and help signal the brain.

The research team found blue light exposure created poisonous chemical molecules that killed photoreceptor cells

"It's toxic. If you shine blue light on retinal, the retinal kills photoreceptor cells as the signaling molecule on the membrane dissolves," said Kasun Ratnayake, a Ph.D. student researcher working in Karunarathne's cellular photo chemistry group. "Photoreceptor cells do not regenerate in the eye. When they're dead, they're dead for good."

However, the researchers found a molecule called alpha-tocopherol, which comes from Vitamin E, can help prevent cell death, according to Futurism.

The researchers plan to review how light from TVs, cellphones and tablet screens affect the eyes as well.

"If you look at the amount of light coming out of your cellphone, it's not great but it seems tolerable," said Dr. John Payton, visiting assistant professor in the UT Department of Chemistry and Biochemistry. "Some cellphone companies are adding blue-light filters to the screens, and I think that is a good idea."

Indeed, Apple released a Night Shift mode two years ago to help quell blue lights strain on the eyes, according to The Verge. The screen will dim into a warmer, orange light that will cause less stress on the eyes.