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15 signs that you're addicted to your Fitbit
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For many, attaining the basic Fitbit goal of 10,000 steps a day provides a substantial challenge. But for those prone to obsessive behavior, obtaining more and more steps poses a dangerous threat to good old-fashioned slothfulness. - photo by Michelle Lehnardt
Look around the room these days and you'll spot someone with a plastic bracelet tracking their steps, miles, etc. No, this isn't some kind of punishment or parole tracker. Most likely they opened a Fitbit on Christmas morning, Hanukkah or New Year's.

And really what kind of a gift is a fitness tracker? Are your loved ones trying to tell you that you're out of shape, lazy or they simply want you out of the house? Besides, the name sounds suspiciously like a swear word.

As a four-year Fitbit aficionado, I can attest to the value of monitoring my daily steps, sets of stairs, active minutes and calories burned. Adding friends to my dashboard inspires me to exercise daily and, let's be honest, try to beat their numbers.

For many, attaining the basic goal of 10,000 steps a day provides a substantial challenge, others (primarily moms of small children) reach 10K without leaving the house. But for those prone to obsessive behavior, obtaining more and more steps poses a dangerous threat to good old-fashioned slothfulness. Here are 15 signs that you're addicted to your Fitbit:

1. You're not jealous of your friend's trip to Paris, but rather of all the steps she'll earn while climbing the Eiffel Tower and strolling the Champs D'Elysees.

2. And your friend knows that she's an addict when she wears her comfortable but ugly Hoka One One shoes all over Paris, including in chic designer shops.

3. If you wear Hoka One Ones at all (Sorry Hoka, I adore you, but you know you're unlovely).

4. After a long workout, you break down and cry because your forgot to wear your tracker. What's the use of exercising if you don't get any credit for it?

5. Since you never want to forget your Fitbit again---constantly checking your wrist, or much more awkward, your bra strap to ensure you've clipped it on this morning.

6. Your home and/or office start to look like Gold's Gym with the treadmill in one corner and the elliptical in the other.

7. In the middle of a long meeting you wonder if it would be disruptive to stand up and pace around the table?

8. You start to gauge television shoes and audiobooks by how many steps of entertainment they'll provide. One episode of "Downtown Abbey" = 8,000 steps. "The Way of Kings" by Brandon Sanderson = 368,000 steps.

9. Instead of sending your kids to the basement for a can of kidney beans, you happily run down yourself. Got to get those stairs in.

10. A trip to the mall actually sounds appealing because you know that just the parking lot to the GAP store accumulates at least a mile.

11. For those of us with the non-waterproof type---feeling a bit frustrated in the shower and while getting ready in the morning. 'Cause that's a lot of steps and we should be getting credit for them. We know you don't have this problem, wristband wearers; you're so smug about it.

12. Removing marathon runners from your Fitbit friend list. Can't keep up with those people.

13. Happily choosing the farthest parking spot.

14. Jumping up from the dinner table for one more walk of the day because you just noticed your friend Jacque in Boston is 1,500 steps ahead of you.

15. Feeling the need to end the day on big round numbers. I can't do 5.9 miles, it needs to be 6; can't go to bed with 11,800 steps, you need 12,000. Get too obsessed and you'll be up all night.

WARNING: these symptoms are exacerbated by beautiful weather and late sunsets. Still, even in the winter you can still spot severe addicts strolling the mall and snowy streets in their Hoka One Ones.
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.