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Heres how much money you should have saved by the time youre 30
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Investment firm Fidelity Investments told Marketwatch that you should have a years salary saved up by the age of 30. - photo by Herb Scribner
Experts told MarketWatch you should have a certain amount of money saved up before you hit your 30th birthday.

Investment firm Fidelity Investments told MarketWatch that Americans should have a years salary saved up by age 30.

By 35, you should have twice your salary saved, the firm said.

Currently, the median retirement savings for a 30-year-old worker stood around $45,000.

MarketWatch acknowledged the expert advice doesnt align with reality.

The problem? Not everyone is saving or can save that much toward retirement, according to the MarketWatch article. Either theyre living paycheck to paycheck, dont know about the accounts available to them or simply arent thinking about the amount of money theyll need in their futures. Only a third of Americans are saving money in an employer-sponsored or tax-deferred retirement account, according to the U.S. Census Bureau.

Such problems as student debt, rising housing prices and wedding costs have derailed todays millennial generation from saving for the future.

Alexander Rupert, assistant portfolio manager at Laurel Tree Advisors, told MarketWatch the balance between spending and saving is important.

Its important to be saving for retirement while doing all these things at the same time, he said.

This advice comes as Northwestern Mutuals 2018 Planning & Progress Study shared that 78 percent of Americans feel extremely or somewhat concerned about not saving enough money.

In fact, 66 percent of respondents believe theyll outlive their savings.

The study found 21 percent of Americans have no savings for the future, while 10 percent have less than $5,000 tucked away.

On average, Americans have $84,821 in retirement savings, which CNBC called far from enough.

Rebekah Barsch, vice president of planning for Northwestern Mutual, told CNBC its never too late to start saving.

"The good news is that it's rarely too late to start," she said. "In fact, we often compare financial and physical fitness because the hardest part is taking the first step. However, once people commit to a strategy and start seeing positive results, they're motivated to meet and even exceed their goals."
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.