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A surprising ingredient — gas relief drops designed for infants — may be contributing to the contamination of medical scopes and putting more patients at risk of infection, according to a small but provocative study.

Researchers in Minnesota unexpectedly found cloudy white fluid inside several colonoscopes and gastroscopes after they had been disinfected and deemed ready for use on the next patient.

In the blink of a few thousand likes and shares, Texas teacher Brandy Young's homework policy gained the viral notoriety normally reserved for tip-shaming.

Earlier this month, Young informed parents of her Godley Elementary second-graders of her policy for the year: no homework.

Bernie Sanders is launching a new political organization. It's called Our Revolution. It aims to support candidates and, according to its website, "advance the progressive agenda that we believe in."

But the revolution is getting off to a rocky start.

Eight key staffers abruptly resigned over the weekend in a dispute over the group's leadership and legal structure.

Sanders himself is set to address followers on Wednesday at 8 p.m. ET for the launch of the group. You can watch that here:

To a mathematician, it's a violent explosion that shoots out missiles of hot, wet air, slamming a turbulent cloud of moisture into anybody or anything that crosses its path.

To the rest of us, it's a sneeze.

They call it the octobot.

The squishy eight-legged robot described in the journal Nature is made entirely out of soft, flexible materials, runs on hydrogen peroxide, and looks like a 2-centimeter-tall baby octopus.

For such a commonplace bodily function, the sneeze has messed with our minds (and noses) for centuries. It will kill us, it won't kill us. We'll have bad luck, we'll have good luck. Watch out for Satan, he's wily and knows how to get into your nasal membranes. Did you have too much to eat? Are you sad? Do you have a weak heart?

The Bombay to Barcelona Library Cafe sits on one side of a noisy street in a lower-middle-class neighborhood of Mumbai, India, not far from the city's swanky new international airport.

Editor's note: Updated at 9:20 am ET to include Mylan's announcement that it will reimburse consumers for some of their out-of-pocket costs.

EpiPens are in your friend's purse and your kid's backpack. The school nurse has a few, as does Grandma.

The medicine inside — epinephrine — has been around forever, and the handy gadget that injects it into your leg is not particularly new either.

Updated at 7:10 p.m. ET

Like a lot of people's grandmothers, Flonzie Brown-Wright keeps a candy jar in the living room of her single-story home, which is also adorned with potted plants and family photos.

A major study about the best way to treat early-stage breast cancer reveals that "precision medicine" doesn't provide unambiguous answers about how to choose the best therapy.

"Precision doesn't mean certainty," says David Hunter, a professor of cancer prevention at Harvard's T.H. Chan School of Public Health.

That point is illustrated in a large study published Wednesday in the New England Journal of Medicine, involving decisions about chemotherapy.

Newborn conjoined twins were evacuated from a Syrian rebel stronghold to the capital Damascus after lengthy negotiations earlier this month.

But brothers Moaz and Nawras died early Wednesday before they could be transferred to a hospital outside Syria for urgent heart surgery. It's a tragic end to a story that was the subject of an international campaign to save their lives.

Italian Premier Matteo Renzi says the death toll from the quake that hit central Italy has risen.

Renzi spoke Wednesday evening in the provincial capital of Rieti after visiting rescue crews and survivors in the hard-hit town of Amatrice and flying over other demolished towns in nearby Le Marche region.

Scientists announced the discovery of a habitable planet Wednesday, orbiting the solar system’s nearest neighboring sun Proxima Centauri.

Rumors of the finding circulated for several days and were confirmed by the European Southern Observatory (ESO), which added more details in a press conference.

Kelly Beatty of Sky & Telescope talks about the planet with Here & Now‘s Jeremy Hobson.

Canada's Mounties Say Female Officers Can Wear Hijabs

Aug 24, 2016

Canada's national police force says it is allowing women in its ranks to wear the hijab.

A spokesman confirmed Wednesday that the Royal Canadian Mounted Police, known as the Mounties, recently approved the headscarf for its Muslim officers.

Tropical Storm Colin ripped across the Gulf of Mexico in June and hit the coast of southwest Florida with 60-mile-an-hour winds. Before it arrived, a team from the U.S. Geological Survey used a new computer model to predict how far inland the waves would invade. When the storm hit, the USGS sent Joe Long out to film it.

It has been three years since The Office wrapped, and actor John Krasinski, who played Jim Halpert, is still feeling lucky. Landing a role on the NBC comedy series had been an unfathomably big break for the actor, whose previous work had been in a series of commercials and off-Broadway plays.

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A potentially habitable planet about the size of Earth is orbiting the star that is nearest our solar system, according to scientists who describe the find Wednesday in the journal Nature.

In Maine's North Woods, forests and rivers that used to feed paper mills will now be permanently protected as a national monument — thanks to a donation by the co-founder of Burt's Bees.

President Obama announced the creation of the Katahdin Woods and Waters National Monument on Wednesday, just one day before the 100th anniversary of the National Park Service.

Gunmen attacked the American University of Afghanistan in Kabul on Wednesday evening, as students and staff hunkered down in place or fled for their lives, witnesses say.

Hospital officials say at least one student was killed and at least 14 injured, as Jennifer Glasse, reporting from Kabul, tells our Newscast unit.

"Right now there are dozens of Afghan police, security forces, special forces. They've surrounded the campus," Glasse says. Here's more:

Nestled among rolling hills and grazing cows, Elmore Mountain Bread in central Vermont is quintessentially pastoral. The setting is apropos, given the owners' recent decision to start grinding their own flour by stone — a veritable step back in time.

A fisherman in the Philippines might have discovered the largest natural pearl ever found — and then kept it hidden under his bed for 10 years.

The pearl's existence was revealed by Aileen Cynthia Maggay-Amurao, a tourism officer in Puerto Princesa, on the island of Palawan.

She says the fisherman is one of her relatives and that he discovered it in a giant clam and kept it as a good-luck charm.

A magnitude 6.8 earthquake shook central Myanmar around 5 p.m. local time on Wednesday, damaging buildings and sending people running into the streets across the region.

Turkish troops crossed into Syria early Wednesday, carrying out airstrikes and launching artillery fire to clear ISIS militants from a border area in coordination with the U.S.-led coalition.

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As St. Louis Mayor Francis Slay sees it, the crowd that packed Hillary Clinton’s new local office Tuesday night could help persuade her Democratic presidential campaign to direct more attention — and resources to Missouri.

Win or lose, such action could help the state’s entire Democratic ticket.

“We need to show the support is here, to pull her over the top,’’ Slay told reporters, shortly before addressing the shoulder-to-shoulder audience that spilled onto the sidewalk outside the Clinton campaign office at 4039 Lindell Blvd.

There was perhaps no movie more buzzed-about coming out of the Sundance Film Festival in January than Nate Parker's directorial debut, The Birth of A Nation, a retelling of Nat Turner's 19th century rebellion of enslaved people in Virginia.

Vincent Van Gogh's paintings might not make it obvious that he was an artist troubled with depression and mania. But a computer algorithm might be able to figure that out. Computer programs are getting pretty good at discovering health information by studying heaps of social media data.

A computer script analyzed galleries of photos posted to Instagram and accurately predicted if the users had depression, according to a study posted this month to the public online repository arXiv.com.

Turkish Rules Leave Syrian Refugee Children In Limbo

Aug 24, 2016

Aref al-Krez has the look of a young, laid-back guy with well-coiffed hair, stylish clothes and carefully cultivated stubble.

But the 24-year-old Syrian refugee and father of a young daughter has a world of worries about her future and his role in it.

Like so many Syrians now living in Turkey, Krez faces huge bureaucratic hurdles while trying to obtain the right government-issued documents that prove his daughter is actually his.

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