"Tongue exercise" to delay aging”

　　“The training method of "Tongue Exercise" is as follows:

　　1. Open your mouth, extend and retract your tongue, and at the same time rub the tips of your right index finger, middle finger and ring finger from the lower left side to the throat, up and down 30 times. Then, when the tongue extends and retracts, use the fingertips of the three fingers of your left hand to rub up and down 30 times from the lower right side to the throat.

　　2. Face the mirror, open your mouth, gently stick out your tongue, stay for 2 to 3 seconds, and repeat the exercise 5 times. Then tilt your head upward, stretch your chin, open your mouth widely, stick out your tongue, stay for 2 to 3 seconds, and repeat the exercise 5 times.

　　3. Face the mirror every morning after washing your face, extend and retract your tongue 10 times each, and then swing your tongue 5 times to the left and right outside the mouth.

　　4. Sit on a chair, spread your hands and fingers on your knees, and lean your upper body slightly forward. First, inhale through the nostrils, then open the mouth widely, stick out the tongue and exhale, open your eyes wide at the same time, look straight ahead, and repeat the exercise 3 to 5 times.