Placebos are commonly thought of as fake treatments that people think are real. But they may be helpful even if you know they're fake. Tim Robberts/Getty Images hide caption

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Tim Robberts/Getty Images

Yana Shapiro relaxes while taking an intravenous vitamin treatment at RestoreIV in Philadelphia. Emma Lee/WHYY hide caption

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Emma Lee/WHYY

Skeptics Question The Value Of Hydration Therapy For The Healthy

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Science writer Jo Marchant investigated the healing power of the mind for her new book, Cure. Jutta Kuss/Getty Images hide caption

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Jutta Kuss/Getty Images

How Meditation, Placebos And Virtual Reality Help Power 'Mind Over Body'

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