Narrated by Martin Clunes, the documentary tells us how we move more, grow more, learn more and even fight more than at any other time in our lives as a baby. We have more bones in our body as a baby than an adult, but we don't have kneecaps. And we laugh 300 times a day, but in the first few months can't produce tears when we're upset.
From a baby's first breath, everything changes. Their blood stream re-routes from the placenta to the lungs, closing a hole in the heart that would require surgery in adults. What a miracle.
As well as learning the facts, we'll meet some awe-inspiring little ones including Sam, who was just six-months old when his buggy was blown into a harbour with him inside. He survived underwater for six minutes! What a little star.
Secret Life of Babies, ITV, 9pm
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