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Social sciences/Anthropology/Cultural anthropology/Ethnology/Folklore

Chewing gum stays in your stomach for seven years. Gelatin comes from animal hooves. Vitamin C prevents colds.

We’ve all heard them before. But how much truth lay behind claims that, say, reading in low light or sitting too close to the television will cause us to need glasses?

According to “Reality Check,” a recently launched feature by AAAS’s award-winning, nationally syndicated radio program Science Update, not too much.