Inside The Human Body

This is the incredible story of the events that led to your birth. Featuring a family who is expecting their 16th baby and a couple who are expecting triplets, we also meet the oldest conjoined twins in the world. With these and other stories, we show you how you being here is against the odds.

Just existing for one minute feels like the easiest thing in the world and yet this is the most complicated thing you will do in your lifetime. This episode will show how you depend on your body to perform countless small miracles to keep you alive, from breathing to blinking to stretching your toe.

The human brain is so sophisticated it takes nearly twenty years to mature. We meet extraordinary characters: Eric, who despite being blind, can climb the world's most terrifying peaks, and the Moken sea gypsy children who have taught themselves to see with incredible clarity underwater.

We are constantly under attack from potentially lethal microscopic organisms. How do we cope? Meet a bull jumper whose muscles give him the strength to avoid a violent death, and a man whose body accepts another man's limbs after a double hand transplant.