Mastering the art of self-control

Psychologist Walter Mischel discusses the science behind willpower

marshmallows

SWEET REWARDS  In a study, kids who waited for two marshmallows, instead of one right away, grew up to do better in school, get better jobs, maintain better physical health and feel better about themselves than their grab-and-go peers.

John Morgan/Wikimedia Commons (CC BY 2.0)

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