Exercise 2: Tennis ball
1. Place a tennis ball under your chin and press it down.
2. Press your chin down hard on the ball for about 2 seconds.
3. Release the pressure slightly, without dropping the ball.
4. Do this exercise 25 times in a row.
1. Place a tennis ball under your chin and press it down.
2. Press your chin down hard on the ball for about 2 seconds.
3. Release the pressure slightly, without dropping the ball.
4. Do this exercise 25 times in a row.
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