How Olympians' Bodies Have Changed from 1924 to 2014 (video)

What has changed in nearly 100 years of sports? See the evolution of the human body over the past century:



See the rest of the videos from the Olympics series here: http://www.cbc.ca/sochi2014/sciencesays

Related reading:

Olympic Bodies: They Just Don't Make Them Like They Used To : Shots - Health News : NPR http://buff.ly/1aGNqhH