Rob Stein

Rob Stein is a correspondent and senior editor on NPR's science desk.

An award-winning science journalist with more than 25 years of experience, Stein mostly covers health and medicine. He tends to focus on stories that illustrate the intersection of science, health, politics, social trends, ethics, and federal science policy. He tracks genetics, stem cells, cancer research, women's health issues and other science, medical, and health policy news.

Before NPR, Stein worked at The Washington Post for 16 years, first as the newspaper's science editor and then as a national health reporter. Earlier in his career, Stein spent about four years as an editor at NPR's science desk. Before that, he was a science reporter for United Press International (UPI) in Boston and the science editor of the international wire service in Washington.

Stein is a graduate of the University of Massachusetts, Amherst. He completed a journalism fellowship at the Harvard School of Public Health, a program in science and religion at the University of Cambridge, and a summer science writer's workshop at the Marine Biological Laboratory in Woods Hole, Mass.

Stein's work has been honored by many organizations, including the National Academy of Sciences, the American Association for the Advancement of Science and the Association of Health Care Journalists.

The Food and Drug Administration is trying to decide whether to approve a powerful new prescription painkiller that's designed to relieve severe pain quickly, and with fewer side effects than other opioids.

While some pain experts say the medicine could provide a valuable alternative for some patients in intense pain, the drug (called Moxduo) is also prompting concern that it could exacerbate the epidemic of abuse of prescription painkillers and overdoses.

A lot of us know what can happen when we get hungry. We get grumpy, irritable and sometimes nasty.

There's even a name for this phenomenon: "Hangry, which is a combination of the words hungry and angry," says psychologist Brad Bushman from Ohio State University.

Ever since the day Garrett Peterson was born, his parents have had to watch him suddenly just stop breathing.

"He could go from being totally fine to turning blue sometimes — not even kidding — in 30 seconds," says Garrett's mother, Natalie Peterson, 25, of Layton, Utah. "It was so fast. It was really scary."

The particular assortment of microbes in the digestive system may be an important factor in the inflammatory bowel condition known as Crohn's disease.

Research involving more than 1,500 patients found that people with Crohn's disease had less diverse populations of gut microbes.

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This is ALL THINGS CONSIDERED from NPR News. I'm Robert Siegel.

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A new blood test offers pregnant women a safe and much more accurate way to screen for Down syndrome.

A study that evaluated the test in 1,914 pregnancies found that the test, which checks DNA, produces far fewer false alarms than the current screening techniques.

A panel of government advisers has expressed serious concerns about a controversial proposal to allow scientists to try to make babies using eggs that have been genetically altered to include DNA from another woman.

Members of the Food and Drug Administration panel said they were worried that not enough research has been done to know whether the experiments would be safe.

This year's flu season is hitting younger and middle-aged adults unusually hard, federal health officials say.

More than 60 percent of flu patients who ended up in the hospital this year have been between the ages of 18 and 64. The proportion of young people among the hospitalized is much higher than usual, according to the federal Centers for Disease Control and Prevention. Only about 35 percent of flu patients who were hospitalized in the previous three years fell into that age group, the CDC says.

Ten years ago Dennis Sorensen was setting off fireworks to celebrate New Year's Eve with his family in Denmark when something terrible happened.

"Unfortunately one of the rockets we had this evening was not good and when we light it then it just blew up and, yeah, my hand was, was not that good anymore," says Sorensen.

When it comes to persuading teenagers not to smoke, you have to think short-term, the Food and Drug Administration says.

"While most teens understand the serious health risks associated with tobacco use, they often don't believe the long-term consequences will ever apply to them," FDA Commissioner Margaret Hamburg told reporters Monday before unveiling the agency's first-ever anti-smoking campaign.

A lot of parents like to think their kids will simply outgrow baby fat. But the risk of becoming a severely overweight adult can actually start as early as kindergarten, research suggests.

"As parents, as a society, as clinicians, we need to think about a healthy weight really early on," says Solveig Cunningham, who led the study. But that doesn't mean putting young children on calorie-restricted diets.

When Melissa Shenewa and her husband imagined their first weeks with their new baby, they pictured hours of cuddling. Instead, they're enduring hours of inconsolable crying.

Their 6-week-old son, Aladdin, is a colicky baby. He cries for hours, usually in the middle of the night. They've tried everything they could think of. Nothing helps.

"Being a parent when your child is screaming in pain for hours on end and there's nothing you can do, you feel helpless," says Shenewa, 24, who lives in Houston. "You feel like you're not a good parent."

Could the microbes that inhabit our guts help explain that old idea of "gut feelings?" There's growing evidence that gut bacteria really might influence our minds.

"I'm always by profession a skeptic," says Dr. Emeran Mayer, a professor of medicine and psychiatry at the University of California, Los Angeles. "But I do believe that our gut microbes affect what goes on in our brains."

Here's possible solace for parents who are up at night with a baby who gets sick all the time: There appears to be a good reason why infant immune systems don't fight off germs.

A newborn's immune system is deliberately not doing battle with every germ that comes along so that "good" microbes have a chance to settle in, researchers say. That explanation is at odds with the widely held belief that those new immune systems are just too weak to do the job.

The next time you look in a mirror, think about this: In many ways you're more microbe than human. There are 10 times more cells from microorganisms like bacteria and fungi in and on our bodies than there are human cells.

Scientists increasingly think that these microorganisms have a huge influence on our health. Without them, our bodies don't seem to do as well. We don't seem to be as healthy and might actually get sick more often.

After spending months working on a series of stories about the trillions of friendly microbes that live in and on our bodies, I decided it might be interesting to explore my own microbiome.

So I pulled out my credit card and paid the $99 needed to sign up for the American Gut Project, one of a couple of "citizen science" or crowdsourced microbiome projects.

The Food and Drug Administration Thursday announced that it wants the federal government to impose tough new restrictions on some of the most widely used prescription painkillers.

The FDA said it planned to recommend that Vicodin and other prescription painkillers containing the powerful opioid hydrocodone be reclassified from a "Schedule III" drug to a "Schedule II" drug, which would impose new restrictions on how they are prescribed and used.

The federal government is considering whether to allow scientists to take a controversial step: make changes in some of the genetic material in a woman's egg that would be passed down through generations.

In the woods outside Huntsville, Texas, scientists are trying to determine whether they can use the microbes that live on the human body as microscopic witnesses that could help catch criminals.

It's a strange scene at the Southeast Texas Applied Forensic Science Facility. At first, it's easy to miss the human bodies scattered among the tall pines, wild grass and weeds.

Federal health officials are worried about an unusually high number of measles cases occurring in the United States this year.

There have been at least eight outbreaks so far this year involving 159 cases, the federal Centers for Disease Control and Prevention reported Thursday in its Morbidity and Mortality Weekly Report.

The Food and Drug Administration today took another step toward restricting use of OxyContin and other powerful and often-abused prescription pain medications.

Billie Iverson may be getting up there, but for an 86-year-old, she's still plenty active.

"I take trips, and I go do my own shopping, and I take myself to the doctor," Iverson says. "I do everything. I don't let anything stop me."

But one day, she got hit with something she'd never experienced — the worst case of the runs ever.

For days at a time, off and on for weeks, the problem kept coming back. Iverson eventually got so weak, she ended up in a nursing home.

"I just thought maybe I wasn't going to make it," she says. "I thought I was going to die."

Look in the mirror and you won't see your microbiome. But it's there with you from the day you are born. Over time, those bacteria, viruses and fungi multiply until they outnumber your own cells 10 to 1.

As babies, the microbes may teach our immune systems how to fight off bad bugs that make us sick and ignore things that aren't a threat.

We get our first dose of microbes from our mothers, both in the birth canal and in breast milk. Family members tend to have similar microbiomes.

The evidence just keeps mounting that the microbes in our digestive systems are a factor in the obesity epidemic.

The percentage of middle and high school students who have tried electronic cigarettes more than doubled in a year, federal health officials reported Thursday.

The percentage of students in grades 6 through 12 who had ever used e-cigarettes increased from 3.3 percent in 2011 to 6.8 percent in 2012, the Centers for Disease Control and Prevention reported in Morbidity and Mortality Weekly Report. Those who reported currently using the devices increased from 1.1 percent to 2.1 percent.

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