Overview: The Embarrassing Bodies team have been trucking around the nation, in Cambridge they met 18 year old Lucy who was suffering from alopecia, or hair loss. Dr Pixie sent Lucy to see hair loss specialist David Lewis. Her scalp and hair was examined using a camera that magnifies the strands 400 times, this allowed David too diagnose Lucy with a hereditary condition that leaves the hair without any cuticle coating, causing breakages and stopping the hair from growing. As there is no cure Lucy was given a complete hair replacement procedure, whereby a new permanent head of hair is glued onto her scalp. To celebrate Lucy really let her hair down!