The Human Body: Secrets of Your Life Revealed - Season 1 Episode 3 -

This programme explores the way our experiences shape our minds and bodies, as we make the journey from being the most helpless to the most sophisticated organism on earth.Chris and Xand van Tulleken uncover how we develop new skills, whether that's riding a bike or learning to walk. They reveal the unexpected link between our heartbeat and our ability to talk; and they show, for the very first time, how memories are formed in our brains and how our experiences continue to change our bodies and even our genes themselves throughout our lives.