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December 2, 2014 An experiment in Chicago randomly assigned train and bus riders to either talk to the stranger next to them or commute quietly. The result? Even for introverts, silence leaves you sadder.
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High school students whose friends posted photos of drinking and smoking were about 20 percent more likely to become drinkers or smokers themselves.
March 10, 2014 It used to be parents worried that their kids were hanging out with the wrong crowd. Now they need to worry about hanging out with the wrong crowd on Instagram. But do online influences matter?
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Beheading Barbie is the kind of aggression that can cause sibling distress.
June 17, 2013 Children who are the target of physical aggression or verbal abuse from siblings are more depressed and anxious than children who aren't victimized. Parents tend to consider sibling conflict normal, researchers say, but they should teach children how to fight fair to reduce psychological distress.
April 29, 2013 Psychologists have long known that children often model their behavior on the actions of parents or peers. But science has only recently begun to measure the influence of siblings. An older brother's or sister's behavior can be very contagious, it turns out — for good and for bad.
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The blue corn's just as tasty as the red corn, but it's not what the locals like.
Erica van de Waal/Science
April 25, 2013 When monkeys move to a new place, they want to eat what the locals are eating, a new study finds. It's among the first to see strong social behaviors in eating among wild animals.
Yours and mine.
March 21, 2013 Little children understand the idea of sharing, but they'd prefer not to play along. But by age 8, the typical child decides that it's a good idea to follow through and be fair, researchers say.
Tailgaters enjoy the food before a Tennessee Titans-New Orleans Saints football game in 2007.
October 4, 2011 Both women and men eat less when their dining companions are men, according to new research in the Journal of Applied Social Psychology.
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