Orthotropics

Orthotropics is basically how the position of your tongue and your overal posture affect the development of your facial structure. In order to have good facial development, you should note the following:
 * 1) Have good body posture.
 * 2) Keep your entire tongue on the roof of your mouth. This inclues the back of the tongue which many people have difficulty doing.
 * 3) Breathe through your nose, rather than your mouth.

https://www.youtube.com/watch?v=irNF-rHfzc8