Eating, talking, laughing ... all actions made possible by your jaw. You simply can't live without it. But a surprising number of people have tightness or pain in their jaw -- 19 million in Japan alone. And if this issue gets worse, it can lead to depression, loss of appetite and more. In 2018, the 1st guidelines for this "tight jaw" condition were released in Japan, including some simple treatment methods you can do yourself. An expert shows us how to loosen our jaw muscles by stretching and massaging them. Do this once in the morning and once at night, and you could see amazing results!