If you’ve texted “Haiti” to the American Red Cross, babysat for a friend in a pinch, or helped a stranger carry her stroller up a flight of stairs, it might actually be contagious. A March 8 study published in the Proceedings of the National Academy of Sciences indicates that people who’ve benefited from the charitable acts of others are more likely to emulate the kind acts, a la Helen Hunt and Kevin Spacey in “Pay It Forward.” Researchers modeled these findings in the drawing below from Wired.com. Who knew scientists could draw?
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