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Video of dollar store clerk serenading customers goes viral
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Cashier by day, crooner by night. An employee at a Michigan Dollar General regularly stuns customers with his soulful singing voice, and a video of one of his impromptu performances has hundreds of thousands of views on Facebook. - photo by Jessica Ivins
LANSING, Michigan Cashier by day, crooner by night.

An employee at a Michigan Dollar General regularly stuns customers with his soulful singing voice, and a video of one of his impromptu performances has hundreds of thousands of views on Facebook.

Lucas Holliday has a thing for soul, and while he spends much of his time standing behind the register, hed rather be standing in front of a microphone, according to ABC News. So he finds a way to mix work with pleasure. Hes known for serenading customers with his powerful chords.

Somebody will come in, and I might be humming or something like this, but all of a sudden I might burst out if they ask me, he told "Good Morning America." Sometimes I get a little blue, a little gloomy when Im working, busy or whatever, stressed And in any case, Ill just bust out, and its crazy to watch people spread that kind of positivity. Its beautiful.

So when a customer and friend Nakia Robinson asked to record Holliday singing Maxwells Ascension in while ringing up another customer, he happily obliged.

Check out my fav cashier at Dollar General THIS MAN CAN SING!, she wrote in a Facebook post featuring the video.

Apparently, more than 638,000 people agree. In just over a week, Robinsons post has been viewed many times, with more than 13,400 shares and 9,200 reactions.

At the end of the video, Robinson offers commentary that accurately sums up how most feel when they hear Holliday sing.

If I had a voice like that, I would never shut up, she said.

Hollidays vocal stylings even snagged the attention of singer-songwriter Maxwell. The entertainer reposted Robinsons video on his Facebook page with an invitation to Holliday to join him on stage.

And it didnt stop there. During an appearance on "Good Morning America" earlier this week, Holliday was surprised midinterview with a video message from Maxwell.

I wanted to personally invite you on stage at my Detroit show this Friday, and hopefully youll join us, he said. Congratulations. You have a seriously amazing voice.

A shocked and overwhelmed Holliday, who told the Lansing State Journal hes been singing since he was just 5 years old, immediately accepted the gig, with a Yes! Yes! Yes!

While he sings alone at the Dollar General, Holliday can be seen performing with his seven-member band, Tell Yo Mama, when hes off the clock. He calls his viral success straight-up insanity.

"I'm just going to roll with it and really just see where it takes me," he told the Lansing State Journal. "It's surprising to see it unfold like it has. I always thought maybe there would be a chance to be seen, to be in the spotlight with my singing, but the last few years I've just been trying to pay the rent and help my mom. When it finally happened, I thought, 'I suppose it's time now.'"
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.