The latest facial craze is having a sharp 'Angelina Jolie' jawline, but if you can't splash the cash then Mewing could be another option. Dr Mike Mew, an orthodontist based in Surrey believes doing tongue exercises can help revive our drooping jawlines. It has become a phenomenon, with more than 130,000 YouTube users subscribed to Mew's videos, which claim to help us chew our way to a better face. He joins us for a mewing masterclass.