Are the Benefits of Aerobic Exercise All in Your Head?

When it comes to aerobic exercise, believing isn't enough. You have to do the work.

If people expect a medical intervention - a drug, a diet, an exercise program - to help them, it often will. This is true even when the “drug” is just an inert sugar pill. Indeed, it’s true even when patients are told that they are only receiving sugar pills.¹

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