What Two Marshmallows Can Predict

In the 1960s, the Stanford University psychologist Walter Mischel turned marshmallows into a research tool. He’d present a child with one. “You can eat it now,” he’d say, just before leaving the room, “but if you wait until I get back, you can have two.”

Two marshmallows can tell you almost as much about the developing brain as a zillion-dollar imaging machine can. The length kids can hold out and the strategies they use to do so reveal tons about the functioning of the frontal cortex…

Dr. Mischel and researchers following him showed that the snapshot of frontal development taken with the marshmallow test predicts things like SAT scores, educational attainment and body-mass index in adulthood. This isn’t all that surprising — who you are at age 6 says something about who you’ll be at 60, including how you’ll have navigated the lifelong challenges of doing the harder thing when it is the right thing to do.

Robert M. Sapolsky in the WSJ.

Comments (15)

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  1. Vagas says:

    Well, I basically agree with that, but how can we identify the truth.

  2. Jordan says:

    “an appalling consequence for a child who imprudently chose the wrong family to be born into.”

    But no abortions. Fantastic.

  3. Wally says:

    Defining stress is difficult, as there are millions who work better under stress

  4. James says:

    I would have definitely stuffed the marshmallow in my mouth.