Diseases that were largely eradicated in the United States a generation ago—whooping cough, measles, mumps—are returning, in part because nervous parents are skipping their children’s shots. NOVA's "Vaccines—Calling the Shots" takes viewers around the world to track epidemics, explore the science behind vaccinations, hear from parents wrestling with vaccine-related questions, and shed light on the risks of opting out.
In the early days of the space race, agency researchers in Russia and at NASA really weren't sure all what would happen to an astronaut in space. They didn't know if a human mind could handle actually seeing Earth or what would happen to the human body when exposed to long periods of weightlessness. Would their blood forget which way to pump? Would their eyeballs shift or their inner ears wig out? They sent up mice and monkeys and dogs, to see what happened, and in 1961, the Russians strapped a man to a rocket headed for orbit. Yuri Gagarin was the first person in space. The ultimate human guinea pig, he survived, becoming an international hero.
In this programme, Drs Chris and Xand van Tulleken discover the everyday miracles that keep you alive. They explore the extraordinary lengths our bodies go to in order to keep our organs working at every moment of every day.
This programme explores the way our experiences shape our minds and bodies as we make the journey from the most helpless to the most sophisticated organism on earth. Dr Chris and Dr Xand van Tullekan uncover how we develop new skills - whether riding a bike or learning to walk.