17 Janurary 2018
For the well being of your brain, or to prevent Alzheimer's disease, it's helpful to do this group of tongues exercies:
1/ Reach out your tongue as far out as possible before withdraw it back;
2/ Wave your tongues outside your mouth from left to right or the other way around;
3/ Bite your tongue everywhere as hard as you do not feel hurt.
Do each set of the exercises 36 rounds once a day.