Paul Offit

Paul Offit, MD, is a professor of pediatrics at the University of Pennsylvania. He is the author of Do You Believe in Magic? The Sense and Nonsense of Alternative Medicine.

  • The Vitamin Myth: Why We Think We Need Supplements

    Nutrition experts contend that all we need is what's typically found in a routine diet. Industry representatives, backed by a fascinating history, argue that foods don't contain enough, and we need supplements. Fortunately, many excellent studies have now resolved the issue.

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What Do You Wish You Learned in College?

Ivy League academics reveal their undergrad regrets

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Famous Movies, Reimagined

From Apocalypse Now to The Lord of the Rings, this clever video puts a new spin on Hollywood's greatest hits.

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What Is a City?

Cities are like nothing else on Earth.

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CrossFit Versus Yoga: Choose a Side

How a workout becomes a social identity

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In Online Dating, Everyone's a Little Bit Racist

The co-founder of OKCupid shares findings from his analysis of millions of users' data.

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