Grinding teeth-can eliminate the relaxation of neck and double chin. 1 Try to open your mouth slowly and level it to the bottom, and then stop 10 seconds. Shut your mouth, and after clenching your teeth, don't stop forcibly 10 second. Repeat the above set of actions for 8 times.
Tongue practice-make the lines of chin and neck more perfect. 1 While pressing your chin with your fingertips, push the tip of your tongue and stick it out as far as possible. As long as you move your tongue to the lower left, the muscles in your mouth will harden. 3 Start to rotate to the right, and turn in circles as a set of actions, and repeat for eight times.