Older Olympians NPR's Joshua Levs reports on the older Olympian. The average age of an athlete on this year's U.S. team is around 28, and several high-profile competitors are in their mid to late 30's. Experts say changes in sports science, including training and nutrition, are helping to push back what scientists have long considered the age of peak performance.

Older Olympians

Older Olympians

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NPR's Joshua Levs reports on the older Olympian. The average age of an athlete on this year's U.S. team is around 28, and several high-profile competitors are in their mid to late 30's. Experts say changes in sports science, including training and nutrition, are helping to push back what scientists have long considered the age of peak performance.