TechKnow: Fountain of Youth - Full Episode

July 17, 2015 4:15PM ET

WATCH: Meet two US scientists who have made a groundbreaking discovery that could turn back the cardiac clock

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Technology

On this episode of "TechKnow”, we meet two scientists who are  researching Growth Differential Factor 11 (GDF11), a blood protein that’s more abundant in younger systems. In mice, GDF11 can reverse the effects of aging in old hearts in as little as four weeks. Though testing on human hearts hasn’t yet begun, work to better understand how manipulating the protein could help combat age-related human heart diseases is on the horizon.

Also in this episode, Rachelle heads to Montana where scientists are working to save the state's rivers and the fly fisherman's holy grail, the cutthroat trout.

Plus Marita goes inside San Francisco's new Bay Bridge to see its innovative approach to earthquake proofing.

Original Air Date: February 2, 2014

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