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The myth of pregnancy brain
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Pregnancy brain is when a new mom or mom-to-be has memory issues or can't think straight. It's also now proven to be a myth. - photo by Jarom Moore
Pregnant women go through significant physical changes throughout their nine months of pregnancy and the few months following, but the changes dont make it to the mind.

Pregnancy brain, or the loss of memory or concentration while pregnant, is a socially constructed idea that a group from Brigham Young University has shown is a myth. Essentially the idea that has given pregnancy brain traction is that since everyone believes in it, it is a real issue.

I do a lot of concussion research, and what concussion research a lot of times suggests is that how people feel their memory is doing is worse than how their memory actually is, said Michael Larson, lead author on the study. We thought the same thing might be happening by people who were pregnant or just had a baby, so we went in to look between their memory on our tests versus how they feel their memory is.

This is what caused a group consisting of Larson, Dustin Logan, Kyle Hill, Rochelle Jones and Julianne Holt-Lunstad to start researching the idea of pregnancy brain. They took 21 pregnant women in their last trimester and 21 women who were never pregnant to see how the brains would differ.

They went through tests to check the different cognitive, memory, visual spatial, language and thinking and planning abilities of the two groups. Both groups were brought in twice around three and six months apart, so the pregnant women gave birth around three months earlier to test recently birthed women.

We went in thinking we didnt know, we were curious to test it because you hear so much about it, that women are having a hard time, Larson said.

What Larson found was that just like a post-concussion problem, the pregnancy brain was simply formed by social constructs and the woman's mind. The testing brought results that the pregnant women were very much in line with their counterparts.

It, 100 percent, looked like a myth, Larson said. So, not only were they not different from themselves, but those scores were almost identical to never pregnant women.

However, how they felt was considerably worse. The mood, perceived memory and quality of life was down in all situations for the pregnant women. They felt worse about their test results. The study adds that the pregnant group reported much worse memory function than the never pregnant women, meaning they felt their memory was far worse than it actually was.

The quality of life was also down, but this seems like a result of pregnancy and a newborn. Things like sleeping and personal time hurt the quality of life in those situations. Holt-Lunstad is a mother of two, and while she sat these dips in her own life, she didnt credit pregnancy brain but essentially sleep deprivation, which is consistent with the study.

Larson wanted to point out that this isnt to diminish anyone who believed they had learning or memory problems. It was actually about showing these women that they can do better.

I think the one thing is, we dont want people to think were being pejorative or were down if they think their memory is bad, Larson said. We hope the study gives them hope. Hey, I can do well even if I just had a baby or Im pregnant. It doesnt mean my memory will be bad.
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.