The simplest approach, believe it or not, is to move your body. All animals use motion to regulate their body budgets; if their brain serves up more glucose than their body needs, a quick scamper up a tree will bring their energy level back into balance. Humans are unique in that we can regulate the budget without moving, using purely mental concepts. But when this skill fails you, remember that you too are an animal. Get up and move around, even if you don’t feel like it. Turn on some music and dance around your home. Take a walk in a park. Why does this work? Moving your body can change your
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