But when the bacteria show up, they can make a stink. That's because when some kinds of bacteria encounter sweat they produce smelly compounds, transforming the armpit from a neutral oasis to the mothership of body odor. And one group of bacteria is to blame for the stink, researchers say.
The researchers took commonly found in the armpit and added an odorless molecule found in human sweat.
"When you're in an elevator or walking behind somebody and you feel like you have to perform to make them feel safe, it's like apologizing for your existence," says Butler.
Others have already joined the conversation through social media.
Of course, the series is carrying on without its original architect, replacing Larsson with David Lagercrantz, a former crime reporter from Sweden.
It's from the barrel of a gun.
Every day, patients with gunshot wounds seek treatment, overwhelming the country's few hospitals. Violence is the third-leading cause of death in the country of 8.2 million people. For four years running now, The U.N.
Ballard tells NPR's Steve Inskeep that those who support the law are "missing the bigger trend."
He added, "Everything changes over history.
"I'm going to be a teacher because I can go anywhere in the world," she thought.
She's originally from O'Neill, a small town in Nebraska, population 3,700. "In the middle of nowhere, literally," as she puts it.
So where did she end up teaching? Right back in O'Neill. She fell in love with a hometown boy and ended up at O'Neill's only public school.
It is hazardous for his top female student to be rappelling here, not only because of the steep drop, but because she is using a frayed, nine-year-old rope handed down from the men's mountaineering team.
Another danger she faces is the prospect of her neighbors finding out she's climbing at all.
Afghanistan is a mountainous country, but scaling the peaks for sport is a new concept here.
And growing up in Annapolis, Maryland, not far from the NSA's headquarters, Swann thought he might work at the agency, which intercepts phone calls, emails and other so-called "signals intelligence" from U.S. adversaries.
"When I was a senior in high school I thought I would end up working for a defense contractor or the NSA itself," says Swann.
"As a field, we're not very good at accurately predicting who is at risk for suicidal behavior," says Matthew Nock, a psychology professor at Harvard.
When Detroit emerged from bankruptcy last year, it did so with a razor-thin financial cushion. It desperately needs every bit of tax revenue it can muster.
Earlier this year, county officials sent out 72,000 foreclosure notices to homeowners behind on property taxes — 62,000 of them in Detroit alone.
Doctors Without Borders (MSF) says the strike hit the Al Mazraq refugee camp in an area controlled by the Houthis.
When you come to the Kenyan pavilion, almost all of the artists will be ... Chinese.
The Biennale, one of the oldest and most important exhibitions of contemporary art in the world, takes place in Venice every two years. Thirty countries, including the U.S., have a permanent slot.
About 50 other countries have applied for their own exhibition space, called a pavilion.
Over the next five years, though, nearly half of those teachers will transfer to a new school or leave the profession altogether — only to be replaced with similarly fresh-faced teachers.
We've been reporting this month on the pipeline into teaching — and
The hunt for big bucks is changing the way politicians run for president.
When a candidate finally admits he or she is a candidate, donors are limited to gifts of $2,700. (A donor can give an additional $2,700 if the candidate makes it through to the general election.)
Not so long ago, a "testing-the-waters" or "exploratory" committee was the usual first step in a campaign.
Heartland Gourmet makes a wide range of foods — from muffins and organic baking mixes to pizzas and burritos. That means business manager Mark Zink has to answer to both of the main U.S.