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When it comes to buying the right sneaker, price doesnt matter
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Worried about buying those cheap running shoes? Think you should invest in more expensive ones? Turns out, you won't be any happier. - photo by Herb Scribner
Dont worry about buying an expensive pair of sneakers.

New research has found that the price of sneakers doesnt affect ones overall satisfaction with the shoe, according to Quartzs Marc Bain.

There is no statistical correlation between the list price of a shoe and how well rated it is, the report said. Actually, if you do a regression analysis, the data suggest that cheaper running shoes are higher rated than expensive ones.

The research, done by RunRepeat, a sneaker review website, comes despite the commonly held notion that spending more on shoes will lead to higher satisfaction, Bain reported.

Researchers, who analyzed more than 130,000 reviews of 391 kinds of sneakers from 24 brands, specifically looked at the 10 most expensive shoes, which had an average price of $181 and were rated 8 percent lower in satisfaction than the 10 least expensive shoes, which cost $61 on average, Bain reported.

Some of the more popular shoe brands, like Nike and Adidas, didnt receive high ratings. In fact, Adidas had the second-worst ratings of the bunch, and Nike stood in the middle despite the brand's high sustainability.

Its important to note, though, that researchers based these findings off satisfaction ratings and not actual performance, Quartz reported. This means that users were satisfied with the shoes, even though they may not perform as well as expensive ones.

I am aware that higher prices set higher expectations, said Jens Jakob Andersen, the lead researcher on the study and founder of RunRepeat, to Quartz, but in any case the price should reflect the quality of the product and thereby the ratings.

Still, previous research backs up the idea that expensive shoes dont always produce the best results. In fact, a 2007 study from Scottish researchers found that low and midcost shoes cushioned runners feet just as well as high-cost ones sometimes even better, according to Lesley Alderman of The New York Times.

In fact, fancy shoes sometimes lead to injury, Alderman reported. Research has shown that running shoes that include more cushioning lead to injury. Part of this, according to Alderman, is that runners will be overly enthusiastic about the product and wont worry about the health benefits or risks.

Thats why when it comes to picking the right shoe, its more about fit and how itll support your feet, rather than price and brand, she wrote.

You want a shoe that helps you maintain a balanced position, Mark Montgomery, manager of JackRabbit Sports in New York, told The Times. A more expensive shoe is not always the solution.
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.