Growing up is the most astonishing transformation: one moment we’re cute and cuddly bundles of joy and everybody loves us, the next we’re bursting with emotions, and spots! Scientists are only now discovering the many extraordinary things that happen to us as our bodies grow, and our minds mature. In this film we reveal the surprising secrets of growing up, that over 20 years turn us from helpless toddlers to wide-eyed children, and from moody teenagers into accomplished adults.