How Olympians Have Changed (1924-2014)

What has changed in nearly 100 years of sports? DAILY EPISODES, answering your burning Olympic questions. Watch 5 episodes before anybody else: Because of the excitement surrounding the Olympics, we decided to make a series about the psychology, physiology, biology, chemistry and physics of the games! Join us every day for your daily dose of Olympic science. Use the hashtag #ScienceSays to share your burning Olympic questions! Special thanks to the CBC for suppor