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In the parts of the world that we cover in our blog, many people live in villages.

Villages have their problems, to be sure. There may not be a doctor or clinic nearby. Girls may not be able to go to school. Clean water might be a long walk away.

But a new book points out that village life has its advantages.

We asked psychologist Susan Pinker, author of The Village Effect: How Face-to-Face Contact Can Make Us Healthier, Happier and Smarter, to explain the benefits of living in a community of about 150 people, the average population of traditional villages throughout history around the world.

What is the village effect?

The village effect is a metaphor for the social contacts we all need as humans in order to thrive. These are the strong social ties that develop naturally in a village, where by necessity you cross paths with each other repeatedly every day. When you think of most villages, there is a central square, a public area where everyone converges or passes by going to the grocer or the post office or city hall or to sit at a cafe. And that is something we have less and less of today in our era of online connections. Commerce is moving online, everything is moving online, and these traditional village spaces are disappearing.

Why is 150 the ideal number for a village population?

One-hundred-fifty is the number that comes up time and again in the types of social interactions that work smoothly. We see it throughout history — whether we're talking about the number of people in traditional hunter-gatherer societies, Neolithic villages, an English country village or the number of Christmas cards we send out. These are people with whom you have strong enough ties that you could ask to borrow $10 until the next payday.

How do these 150 "village" ties compare to online ties?

Not all types of social ties are created equal. Oxford evolutionary psychologist Robin Dunbar posits 150 as the maximum number of meaningful relationships that the human brain can manage. We know from our own lives there are only so many people that you can invest in that way, that you can call and invite to dinner or check in on when sick.

The Village Effect

How Face-to-Face Contact Can Make Us Healthier, Happier, and Smarter

by Susan Pinker

Hardcover, 368 pages | purchase

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These are the types of social ties that develop naturally in a village, where by necessity you cross paths with each other repeatedly every day. When you think of most villages, there is a central square, a public area where everyone converges or passes by going to the grocer or the post office or city hall or sit at a cafe. And so these ties develop naturally through frequent in-person contact.

These are different from the weak contacts that you might have in your online social networks. You could walk by some of these online contacts on the street without even recognizing them. These weak contacts are great if you need a recommendation for a restaurant in a strange city, for instance, or [are] looking for a cleaning lady or other types of information. But in terms of social ties, it's the difference between your mother's lasagna or homemade chicken soup compared with fast food.

Why is the village effect so important?

If you have a cohesive community, you will have extra helping hands for the young and the old and everybody in between. The village effect impacts not only those who are vulnerable but it helps people feel they belong somewhere.

And if we know anything from all of the demographic studies in neurosciences, if you are lonely or isolated, it is almost a death sentence.

When you are getting together face to face, there are a lot of biological phenomena: Oxytocin and neurotransmitters get released, they reduce stress and allow us to trust others. Physical contact unleashes a whole chain of events that make us and make the other person feel good, and affects our health and well-being.

By contrast, according to research, we've never been lonelier as a society than we are now, and this can take a toll on our health.

Those of us who don't live in villages — are we out of luck?

You can create your own village effect. Get out of your car to talk to your neighbors. Talk in person to your colleagues instead of shooting them emails. Build in face-to-face contact with friends the way you would exercise. Look for schools where the emphasis is on teacher-student interaction, not on high-tech bells and whistles.

We need to recognize that digital connections should enhance but never replace the real-life connections. I don't think we all should throw out digital devices and move back to the village. I'm not romanticizing village life but using it as a metaphor as what is disappearing: deep social ties and the in-person contact we all need to survive.

This interview has been edited for length and clarity.

Read an excerpt of The Village Effect

Susan Pinker

Village effect

At a sentencing hearing for Oscar Pistorius, a court-appointed prison social worker says the South African athlete's punishment for culpable homicide should include three years of house arrest.

Pistorius shot and killed his girlfriend, Reeva Steenkamp, in his home last year. The former Olympian was found not guilty of murder last month.

From Pretoria, reporter Nastasya Tay filed this story for our Newscast unit:

"Correctional services officer Joel Maringa says the sentence Oscar Pistorius should receive would be three years of house arrest with strict monitoring — no guns, no drugs, no alcohol — and the attendance of support programs, along with 16 hours of community service a month, likely cleaning a local museum or hospital, to compensate society 'for the wrong he has done.'

"Steenkamp's parents looked stricken as Maringa read from his report. Prosecutor Gerrie Nel was incredulous, calling it 'shockingly inappropriate.'

"But ultimately, it is the judge who will decide, likely later this week, after hearing arguments from both sides."

Speaking at today's hearing, Pistorius' therapist described him as being traumatized by Steenkamp's death, describing signs of post-traumatic stress during their sessions.

Oscar Pistorius

This story is part of the New Boom series on millennials in America.

Millennials are spending — and giving away their cash — a lot differently than previous generations, and that's changing the game for giving, and for the charities that depend on it.

Scott Harrison's group, Charity: Water, is a prime example. Harrison's story starts in New York's hottest nightclubs, promoting the proverbial "models and bottles."

"At 28 years old, I realized my legacy was going to be just that. Here lies a guy who got people wasted," Harrison says.

So he changed his story. Harrison volunteered to spend the next two years in West Africa. What he found when he first got to Liberia was a drinking water crisis. He watched 7-year-olds drink regularly from chocolate-colored swamps — water, he says, that he wouldn't let his dog drink.

Most childhood diseases in the developing countries he visited could be traced to unsafe drinking water, so everything changed for Harrison. He got inspired to start raising money for clean water when he returned to the states, but his friends were wary.

"They all said, 'I don't trust charities. I don't give. I believe these charities are just these black holes. I don't even know how much money would actually go to the people who I'm trying to help,' " Harrison recalls.

So his one cause became two: He started Charity: Water to dig wells to bring clean drinking water to the nearly 800 million people without access to it around the globe. But he also wanted to set an example with the way the organization did its work.

"We're also really trying to reinvent charity, reinvent the way people think about giving, the way that they give," he says.

“ That sense of 'I need to give out of obligation' — I don't know that it's going to be around 20 years from now.

- -Amy Webb

Demographic change is a huge reason for rethinking this. With around 80 million millennials coming of age, knowing how they spend their cash on causes is going to be critical for nonprofits. And their spending patterns aren't the same as their parents.

"Our culture is changing pretty dramatically," says Amy Webb, who forecasts digital trends for nonprofit and for-profit companies. "That sense of 'I need to give out of obligation' — I don't know that it's going to be around 20 years from now."

One piece of advice she gives on appealing to younger donors? Don't even ask them to "donate," because younger donors want to feel more invested in a cause. Choose a different word, with a different connotation: investment.

"It may seem something simple. It's just semantics: donation vs. investment. But I think to a millennial, who's grown up in a very different world, one that's more participatory because of the digital tools that we have, to them they want to feel like they're making an investment. Not just that they're investing their capital, but they're investing emotionally," Webb says.

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The Manhattan-based headquarters of Charity: Water. Elise Hu/NPR hide caption

itoggle caption Elise Hu/NPR

The Manhattan-based headquarters of Charity: Water.

Elise Hu/NPR

And there's the tech part. She says any philanthropy without a smart digital platform — not just for donations but for empowering a community of givers — will be left behind.

Which brings us back to Charity: Water. Designers spend most their time finding ways to save their donors time, trimming as much lag time or obstacles to giving online as possible.

"There are a lot of people who are more willing to be generous with 20, 30 and 50 dollars, but their time is actually worth something. And the thought of pulling out their credit card and fighting through a two- and three- and four-page form is just too much," Harrison says.

On its site, giving is as simple as a couple of clicks. And Charity: Water's big tactical success, the approach for which it's earned notoriety, is getting young people to call on their own real-life social networks for help. It's the same approach that made this summer's Ice Bucket Challenge for ALS so unavoidable.

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"We're always taking selfies, we're sharing details about our lives. So why not do a little social narcissism for a good cause," Beth Kanter, author of Measuring the Networked Nonprofit, told NPR in August.

Charity: Water stokes that by building campaigns around birthdays.

"One of the big ideas that the millennials embraced," Harrison says, "is this idea that we sorta stumbled into, when we asked people to give up their birthday for clean water. So I went around asking everyone I knew to give $32 for my 32nd birthday."

Soon, tech CEOs were raising tens of thousands of dollars per campaign by giving up their birthdays for water. This spring, NFL safety Kam Chancellor joined in. And the generation that comes after millennials — the children today — are getting into it, too.

"We had 7-year-olds in Austin, Texas, go door to door asking for $7 donations. We had 16-year-olds in Indiana asking for $16 donations," Harrison says.

The group's focus on social networks and simple design means 4 million more people, in 22 countries, now have access to clean drinking water.

But you don't have to take our word for it. Charity: Water's latest tech improvement is putting remote sensors on wells — so donors can see just how much water flows from what they helped build.

"We think this is just going to be game changing," Harrison says.

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scott harrison

giving

Millennials

The besieged city of Kobani, Syria, has seen an increase in air strikes and fighting, with Kurdish fighters in the area saying they've stopped the extremist group ISIS from advancing. As the U.S.-led coalition carried out strikes on areas east and south of Kobani, new reports emerged about Turkey's role in supporting the fight against ISIS.

U.S. officials said this weekend that Turkey had agreed to let the coalition use its bases to strike ISIS. But on Monday, a Turkish official tells the AP that "there is no new agreement with the United States on using an air base in southern Turkey," the news agency says.

On Friday, the U.S. State Department announced that Turkey would train and equip a moderate opposition in Syria to help fight ISIS. Turkey's discussions of joining that fight have often included a call for a no-fly buffer zone along its border with Syria. NATO officials have been reluctant to add the idea of "safe havens" to the situation along the border.

Today, Kurdish fighters who are trying to defend the city of Kobani are saying they've made advances against ISIS, a claim that was echoed by a monitoring group. U.N. officials have warned of a potential massacre if the city falls.

The European Union will send nearly $5 million in emergency humanitarian aid to groups helping refugees from Kobani.

From Brussels, Teri Schultz reports for NPR's Newscast unit:

"Expressing 'deep concern' over the situation, the EU says the people of Kobane have shown the international community they are resolved 'to use all means to protect their own rights and values and to resist oppression.'"

On Sunday, the head of the Joint Chiefs of Staff said he believes that a looming battle for Mosul might prove to be a pivotal clash in the fight against ISIS. It would be a ground conflict, Gen. Martin Dempsey said, and it might require the participation of U.S. advisers.

Islamic State

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