These companies help parents try to pick their babies’ traits. Experts are wary

Justin Schleede is the executive lab director at Herasight, a company that screens embryos for health risks and traits such as height, longevity and IQ.

Prospective parents can now pick embryos based on risk predictions for thousands of diseases and odds for specific traits. But should they?

(Image credit: Kate Medley for NPR)

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Rob Stein

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