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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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A new study finds that women who ate a low-fat diet and more fruits, vegetables and grains, lowered their risk of dying from breast cancer. But which of those factors provided the protective effect? Cavan Images/Getty Images/Cavan Images RF hide caption

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Cavan Images/Getty Images/Cavan Images RF

The increase in suicide rates was highest for girls ages 10 to 14, rising by nearly 13% since 2007. While for boys of the same age, it rose by 7%. Nicole Xu for NPR hide caption

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Nicole Xu for NPR

Suicide Rate For Girls Has Been Rising Faster Than For Boys, Study Finds

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An example of one of the study's ultra-processed lunches consists of quesadillas, refried beans and diet lemonade. Participants on this diet ate an average of 508 calories more per day and gained an average of 2 pounds over two weeks. Hall et al./Cell Metabolism hide caption

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Hall et al./Cell Metabolism

It's Not Just Salt, Sugar, Fat: Study Finds Ultra-Processed Foods Drive Weight Gain

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Debris blankets the north side of one of the Cocos Keeling Islands in the Indian Ocean. Researchers found a huge amount of plastic both onshore and buried in the sand. Courtesy of Silke Stuckenbrock hide caption

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Courtesy of Silke Stuckenbrock

Remote Island Chain Has Few People — But Hundreds Of Millions Of Pieces Of Plastic

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Researchers also found that congestion on the roads in San Francisco also was exacerbated because of where the ride-hailing cars were and at what time of day. Justin Sullivan/Getty Images hide caption

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Justin Sullivan/Getty Images

Isabelle Carnell-Holdaway (left), now 17, with her mother Joanne Carnell-Holdaway. Isabelle has a dangerous infection that is being treated with a cocktail of genetically modified viruses. Courtesy of Jo Holdaway hide caption

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Courtesy of Jo Holdaway

Genetically Modified Viruses Help Save A Patient With A 'Superbug' Infection

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Muslim women praying together in Istiqlal mosque, Jakarta, Indonesia. Afriadi Hikmal/Getty Images hide caption

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Afriadi Hikmal/Getty Images

"Nature is declining globally at rates unprecedented in human history," a U.N. panel says, reporting that around 1 million species are currently at risk. Here, an endangered hawksbill turtle swims in a Singapore aquarium in 2017. Roslan Rahman/AFP/Getty Images hide caption

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Roslan Rahman/AFP/Getty Images

1 Million Animal And Plant Species Are At Risk Of Extinction, U.N. Report Says

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Dr. Kaiyu Hang/Yale University

If Drones Had 'Claws,' They Might Be Able To Fly For Longer

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Cornelia Li for NPR

From Gloom To Gratitude: 8 Skills To Cultivate Joy

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Phil Gutis with his dog, Abe, who died last year. Gutis, who has Alzheimer's, hoped an experimental drug could help preserve his memories. Courtesy of Timothy Weaver hide caption

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Courtesy of Timothy Weaver

After A Big Failure, Scientists And Patients Hunt For A New Type Of Alzheimer's Drug

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The Xiahe mandible was originally found in 1980 in Baishiya Karst Cave. Researchers say the bone is 160,000 years old and came from a Denisovan. Dongju Zhang/Lanzhou University hide caption

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Dongju Zhang/Lanzhou University

Denisovans, A Mysterious Kind Of Ancient Humans, Are Traced To Tibet

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MMR — the modern combination vaccine against measles, mumps and rubella — provides stronger, longer-lasting protection against measles than the stand-alone measles vaccine typically given in the U.S. in the early 1960s. Eric Risberg/AP hide caption

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Eric Risberg/AP

Measles Shots Aren't Just For Kids: Many Adults Could Use A Booster Too

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Golden State Warriors guard Stephen Curry (left) and then-Cleveland Cavaliers forward LeBron James scramble for a loose ball during Game 1 of the 2016 NBA Finals. Beck Diefenbach/AFP/Getty Images hide caption

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Beck Diefenbach/AFP/Getty Images

Decoded Brain Signals Could Give Voiceless People A Way To Talk

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Social psychologist Keith Payne says we have a bias toward comparing ourselves to people who have more than us, rather than those who have less. Marcus Butt/Getty Images/Ikon Images hide caption

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Marcus Butt/Getty Images/Ikon Images

While it may seem that heaps of plastic from meal kit delivery services like Blue Apron make them less environmentally friendly than traditional grocery shopping, a new study says the kits actually produce less food waste. Derek Davis/Portland Press Herald via Getty Images hide caption

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Derek Davis/Portland Press Herald via Getty Images