Right then folks, #PerfectBody is on in just 7 minutes, 9pm @BBCFour, and I’ll be live-tweeting throughout - answering your questions but also wanting to know what bits of human anatomy YOU would change! https://t.co/sVGeClCSvA pic.twitter.com/6IVfKzwfHT

— Prof Alice Roberts💙 (@theAliceRoberts) June 13, 2018