In the U.S., 115 million adults have prediabetes, which is tied to heart disease and other health problems. A 20-year follow-up to a landmark diabetes study shows lifestyle interventions cut the risk.
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Allison Aubrey is a correspondent for NPR News, where her stories can be heard on Morning Edition and All Things Considered. She's also a contributor to the PBS NewsHour and is one of the hosts of NPR's Life Kit.