Demography: Video

What was the major medical breakthrough in modern history?

What was the major medical breakthrough in modern history?

Antibiotics? Medical imaging? Ultrasound? Heart transplants or drugs like viagra? University of Chicago's Professor S. Jay Olshansky explains the major medical breakthrough of last century - and actually, it's none of the suggestions above.

Antibiotics? Medical imaging? Ultrasound? Heart transplants or life-saving drugs? Professor S. Jay Olshansky gives his answer.

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