This stunning series aims to decrypt the mechanisms of the human body and brain through exceptional experiments, as well as reports on women and men who stretch their physical and mental limits. 15 x 2 hour programmes have aired on France 2 since 2012 attracting large audiences - this 6 part series selects the very best of them. Featured stories examine: How our skeleton regenerates entirely every 10 years; Why we only use 10% of our pulmonary capacities; Why the sense of vertigo is 100% caused by psychological factors; How feel-good hormones secreted by our brain can save our life.