This problem is very important to me ... First, eat less chewy food, because chewing for too long will make facial muscles exercise for a long time, even if biceps are exercised, it will become bigger. Second, do more facial exercises after meals or at rest, especially the lateral muscles, that is, the cheeks. You can stretch facial muscles by kneading and opening your mouth to make them exercise regularly. Third, you can go to a beauty salon to do a series of face-lifting maintenance. Of course, the price is beyond doubt. ...