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In praise of - marshmallows.

According to the psychologist Walter Mischel, willpower is one of our most important strengths and has key to our life outcomes – at least that's what his book, Willpower: Rediscovering Our Greatest Strength is saying.

Mischel knows a lot about willpower since, in the 1960s, he created a now famous experiment called "the marshmallow test" to evaluate it in four-year-old children – then followed their life trajectories over the years to come. The marshmallow test now materialises all over the place, in political talk as much as self help circles or newspaper interviews with Mischel (one appeared in a newspaper earlier this week). At last year's Conservative conference, for instance, David Willets raised it in relation to last summer's riots. The premise of the test is that a kid is left sitting in a room with one marshmallow and told that if her or she waits for twenty minutes, not eating the first marshmallow, he or she will get a second. My plan this evening is to try this marshmallow test on my four-year-old and find out if he might be a possible future rioter, or have a happy, successful career ahead of him – kids that do well in this test, Mischel has shown, tend to do well in life. So, does that mean it's all over for some of us marshmallow scoffers? The good news is that "willpower is like a muscle". You can exercise it. But I can't see how if I struggle to bring myself to exercise my actual muscles at the gym, I'm going to find it easy to work on this imaginary muscle. However, his marshmallow test does bring to light a few enlightening tips. What he found was that the kids who held out for the second marshmallow were those who distracted themselves, kicked tables, sang songs, twirled hair. Now, put that way, it doesn't seem so hard.