Often practiced tongue fuck, 80 not loss of teeth 
 
 
Source: life times 

    Japan has launched a "80 - year - old still can maintain more than 20 teeth" movement, recommended practice a mouth "gymnastics" the old man. Divided into facial gymnastics, the tongue and salivary gland massage 3 kinds. Insist for a long time to chew makes strong, articulate.
 
    Facial gymnastics. 1. Hard to breathe in, and your lips to reanimate sides etc, and close your eyes; 2. The mouth and eyes suddenly open; 3. Hard to shut up, including relief sway in the mouth. 1 ~ 3 to 10 seconds each, do 3 times. Please do after washing a face in the morning, can make facial expression more rich, still can prevent off rice.
 
    Gymnastics with open mouth. 1. The tongue unconsciously shot out and back; 2. The tongue thrust forward as far as possible, move around, to lick around the mouth about the extent of the rotation; 3. Stick out your tongue hard, like to reach the tip, chin up and down.
 
    Silent gymnastics. 1. The pressure on the lips with the tongue; 2. Press down with the tongue lips; 3. Pressure cheeks are with the tongue, tongue turned around. Mouth and close your breath gymnastics before, please do 5 times each, can make the pronunciation more clear, chew swallow more easily.
 
    Salivary gland massage. With exception of the thumb four fingers after double face near the molars from forward knead 10 times; Then, thumbs jaw bone inside soft parts, massage ear down to my chin in turn 5 times. The above actions over and over again for 2 ~ 3 times. If swallow force, can be in to do the healthy mouth of neck and shoulder gymnastics gymnastics before and after.
 
(xue's)
 
 
 
The original link: http://paper.people.com.cn/smsb/html/2014-11/04/content_1494241.htm