A gene variant partly explains why Peruvians are among the world’s shortest people

A common variation in DNA reduces some people's height by about 2 centimeters, on average

Peruvian man walking up cobblestone path

Peruvians, like this man walking in the ancient Incan village of Ollantaytambo, are some of the world’s shortest people as a population. Some carry a version of a gene that partly explains why.

JannHuizenga/iStock Unreleased/Getty Images

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