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Is it your period or are you pregnant? Here's how to tell the difference.
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You experience these symptoms every month, but could it mean youre pregnant? - photo by Shaelynn Miller
If youre trying to get pregnant, you might feel excitement and anxiety when that time of the month rolls around. Youve researched early pregnancy symptoms and at-home pregnancy tests that will give you the earliest results. But, be careful about getting ahead of yourself.

These seven period signs can be mistaken for pregnancy symptoms, and here is how to tell the difference between them:

Symptom #1: Spotting

Spotting can occur when the fertilized egg attaches to the uterine wall. It takes about two weeks for it to travel from the fallopian tube (where conception occurs) to the uterus, so you might start to see blood at around the time you expect your period. For this reason, some women might mistake implantation bleeding for their period. But, implantation bleeding is typically lighter and shorter than a period.

Symptom #2: Fatigue

Fatigue is one of the first pregnancy symptoms many women experience. Your energy levels can drop just one week after conception - before youve even missed your period. There is a difference between the fatigue you experience during your cycle and when you're pregnant. It is more drastic when you become pregnant, according to Dr. Robert Atlas, OB/GYN. But dont worry, this fades slightly during the second trimester.

Symptom #3: Cramps

Some women experience cramps a few days before their period, and you can also cramp early in pregnancy. The difference is the duration. Menstrual cramps can last a few days to the entire length of your period, while pregnancy cramps last anywhere from a weeks to months. You might also notice a difference in how they feel. Pregnancy cramps feel like light period cramps in your lower back and stomach versus the raging pain in the abdomen your period causes.

Symptom #4: Cravings

There is a big difference between wanting something and needing something. Pregnancy cravings make you feel like you need whatever it is you're craving. You may wake up with a craving for an ice cold root beer or a Chipotle burrito and you will do almost anything to satisfy these cravings, according to New Health Guide. Husbands, when your pregnant wife asks for chocolate ice cream at two in the morning, just get her some without question.

Symptom #5: Tender breasts

Hormone changes during your period can cause breast swelling. If its pain from your menstrual cycle, your breast tissue might feel bumpy and dense, especially in the outer areas. Youll notice large lumps in your breasts, which disappear once your period starts. If its a pregnancy symptom, your breasts might feel heavy, sore and tender, and your areolas may also become darker. But there's good news: Your breasts will probably stop hurting after the first trimester.

Symptom #6: Nausea

Nausea is a prevalent pregnancy symptom, but some women experience it during premenstrual syndrome (PMS), too. However, it is less common to feel sick during your period,so if you're feeling a bit queasy, you might want to take a pregnancy test.

Symptom #7: Mood swings

Your cycle and pregnancy will always change your hormone levels, so mood changes are bound to happen with both. If youre pregnant, you might experience mood swings between six and ten weeks. If you start feeling moody shortly before you expect your period, you can assume it's PMS, and there's no shame in that.

The best way to discover if youre pregnant is to take a test. And if you aren't trying, knowing the symptoms can ease your mind.
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.