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New research shows that daily light walking is important for maintaining health as you age. But if you can't hit 10,000 steps, don't worry. Peter Muller/Getty Images/Cultura RF hide caption

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Peter Muller/Getty Images/Cultura RF

10,000 Steps A Day? How Many You Really Need To Boost Longevity

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Chronic stress at work can lead to burnout, a syndrome defined by the World Health Organization as including depleted energy, exhaustion, negativity, cynicism and reduced productivity. baona/Getty Images hide caption

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baona/Getty Images

WHO Redefines Burnout As A 'Syndrome' Linked To Chronic Stress At Work

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Charges for nitrous oxide during labor and delivery haven't been standardized. Courtesy of Kara Jo Prestrud, Birth Made Beautiful hide caption

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Courtesy of Kara Jo Prestrud, Birth Made Beautiful

Bill Of The Month: $4,836 Charge For Laughing Gas During Childbirth Is No Joke

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Infants' Tylenol comes with a dosing syringe, while Children's Tylenol has a plastic cup. Both contain the same concentration of the active ingredient, acetaminophen. Ryan Kellman/NPR hide caption

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Ryan Kellman/NPR

Tylenol For Infants And Children Is The Same. Why Does 1 Cost 3 Times More?

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Reporter Jenny Gold and her husband, Alex Gourse, with their newborn son at Prentice Women's Hospital in Chicago two days after his birth. Courtesy of Bella Baby Photography hide caption

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Courtesy of Bella Baby Photography

I Went Through My Pregnancy With Strangers. It Was The Best Decision I Could've Made

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Having a purpose in life, whether building guitars or swimming or volunteer work, affects your health, researchers found. It even appeared to be more important for decreasing risk of death than exercising regularly. Dean Mitchell/Getty Images hide caption

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Dean Mitchell/Getty Images

About two years ago, Alphonso Evans went to the hospital for what he thought was just another bladder infection and ended up in intensive care. In an effort to combat antibiotic-resistant superbugs, scientists have created "living antibiotics" made of viruses that have been genetically modified using the gene-editing tool CRISPR. Rob Stein/NPR hide caption

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Rob Stein/NPR

Scientists Modify Viruses With CRISPR To Create New Weapon Against Superbugs

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Chris Nickels for NPR

How The Brain Shapes Pain And Links Ouch With Emotion

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A new book, Bottle of Lies, reveals serious safety and purity concerns about the global generic-drug supply. Tetra Images/Getty Images hide caption

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Tetra Images/Getty Images

The Generic Drugs You're Taking May Not Be As Safe Or Effective As You Think

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Dr. Randall Bly, an assistant professor of otolaryngology-head and neck surgery at the University of Washington School of Medicine who practices at Seattle Children's Hospital, uses the experimental smartphone app and a paper funnel to check his daughter's ear. Dennis Wise/University of Washington hide caption

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Dennis Wise/University of Washington

Many people might not be aware of what types of vaccines they need as they get older. Here, an adult gets a flu shot in Jacksonville, Fla. Rick Wilson/AP images for Flu + You hide caption

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Rick Wilson/AP images for Flu + You
Pete Pacifica/Getty Images

We Gossip About 52 Minutes A Day. That May Not Be As Toxic As It Sounds

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Copperhead snakes are one of the four kinds of venomous snakes in the United States. kristianbell/RooM RF/Getty Images hide caption

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kristianbell/RooM RF/Getty Images

How You (And Your Dog) Can Avoid Snake Bites — And What To Do If You Get Bitten

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Just as sleep deprivation has been shown to impair cognition, so too has it been found to dampen empathy for others. Johner Images/Getty Images hide caption

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Johner Images/Getty Images