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Actual scientific research on beards is, regrettably, scant. However, researchers now know how beards are perceived by one important group of people: children. Maskot/Getty Images hide caption

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Maskot/Getty Images

Kids See Bearded Men As Strong — But Unattractive, Study Finds

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Airway-irritating acetals seem to form in some types of vape juice even without heat, researchers find — likely a reaction between the alcohol and aldehydes in the liquid. Gabby Jones/Bloomberg via Getty Images hide caption

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Gabby Jones/Bloomberg via Getty Images

Gray was diagnosed with sickle cell disease when she was an infant. She was considering a bone marrow transplant when she heard about the CRISPR study and jumped at the chance to volunteer. Meredith Rizzo/NPR hide caption

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Meredith Rizzo/NPR

In A 1st, Doctors In U.S. Use CRISPR Tool To Treat Patient With Genetic Disorder

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Sovereign Valentine, a personal trainer in Plains, Mont., needs dialysis for his end-stage renal disease. When he first started dialysis treatments, Fresenius Kidney Care clinic in Missoula charged $13,867.74 per session, or about 59 times the $235 Medicare pays for a dialysis session. Tommy Martino/Kaiser Health News hide caption

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Tommy Martino/Kaiser Health News

A common guillemot (Uria aalge) brings a sprat to feed to its chick. The laying dates of this species were followed for 19 consecutive years on the Isle of May, off the coast of southeast Scotland. According to a new paper in Nature Communications, many birds are adapting to climate change — but probably not fast enough. Michael P. Harris hide caption

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Michael P. Harris

Dan Gilbert says we're not great at predicting how much we will enjoy an experience in part because we fail to consider all of the details. We think a visit to the dentist will be terrible — but we're forgetting about the free toothbrush, the nice chat with the dental hygienist, and the magazines in the waiting room. Peter Macdiarmid/Getty Images hide caption

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Peter Macdiarmid/Getty Images

Decisions, Decisions: Some We Struggle To Make, Others We Can't Forget

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A worker at the port in Nantong, in China's eastern Jiangsu province, displays soybeans imported from Ukraine. Imports of soybeans from the U.S., once China's biggest supplier, have dropped massively since a trade war between the U.S. and China began in 2018. STR/AFP/Getty Images hide caption

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STR/AFP/Getty Images

Sleep scientists say the power of a warm bedtime bath to trigger sleepiness likely has to do, paradoxically, with cooling the body's core temperature. PhotoTalk/Getty Images hide caption

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PhotoTalk/Getty Images

Overall in medical research, the proportion of participants with non-European ancestry is only about 20 percent, says Columbia University bioethicist Sandra Soo-Jin Lee. And that's a problem. Tek Image/Science Photo Library/Getty Images hide caption

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Tek Image/Science Photo Library/Getty Images

University of Utah doctoral student Jacob George, left, and associate professor Greg Clark examine the LUKE arm that they use for their experiments. A man who lost his lower arm in an electrical accident was able to experience some sense of touch and fine motor control with his grip while using the experimental device. Dan Hixson/University of Utah College of Engineering hide caption

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Dan Hixson/University of Utah College of Engineering

Indian fishermen pull up a shark from a boat for sale at a harbor in Chennai in June 2018. Many shark species tend to congregate in the same areas as industrial fishing ships, a study finds. Arun Sankar/AFP/Getty Images hide caption

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Arun Sankar/AFP/Getty Images

What Time Of Year Are People Likely To First Try Drugs? Summer, Survey Says

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Secretary of Agriculture Sonny Perdue, shown here on Capitol Hill in April, announced last month that most staff from two USDA research agencies were being relocated to the Kansas City region. J. Scott Applewhite/AP hide caption

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J. Scott Applewhite/AP

Hidden Brain: How People React To Election Interference By Foreign Countries

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