Tongue-to-palate is the best way to connect Ren and Du meridians, so the ancients also called it "Queqiao". Modern research has found that tongue contact with the palate can promote oral salivary glands to secrete more saliva. The normal secretion of saliva is an important part of oral self-cleaning, which can prevent tooth decay.
Twin sisters with almost identical genes should have the same clear and beautiful appearance, but their appearance has changed dramatically after a few years. In other words, my sister is disabled! The reason is that my sister's mouth is breathing and there is no tongue against the palate, so the dentition is deformed. It can be seen that the correct tongue facing the palate is of great benefit to our health and even to our appearance! When we practice Tai Ji Chuan, we should stick our tongue to the upper jaw.
According to the research of modern orthodontics, we found the answer. The correct requirement for the tongue to touch the palate is that the whole tongue is completely lifted against the palate, the tip of the tongue is behind the upper gum, and the surface and root of the tongue are close to the palate. It is wrong to use only the tip of the tongue, the surface of the tongue and the root of the tongue. At this point, people can only breathe through their noses!