Does Serena Williams Have The Willpower To Ace The 'Marshmallow Test'?
In the experiment, kids get a treat. If they don't eat it for, say, 10 minutes, they're promised a second treat. What would Williams do? And how does she compare with kids around the world?
Read more on NPR
Làm đẹp Blog 247 January 11, 2018 at 10:40PM
Category Health & Science
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