For those who smile happily and look good, we can see several laws: the corners of the mouth will rise, the rope will rise, the eyes will sink, and the silkworm will bulge. The happier they laugh, the greater the contraction of orbicularis oculi and zygomatic muscles.
And some people can't laugh, or laugh unnaturally. First, because these muscles that control smiles are not sensitive enough, or the degree of activation is not enough, they are particularly cold when they smile.
Second, because of "fake smile", which is also the most common unnatural smile. We can observe several expressions about laughter in WeChat expressions. Why do we often think that the expression "smile" is yawning? If someone laughs, I always feel that this person is not laughing from the heart.
In fact, in these expressions, whether it is "smile", "laugh", "simple smile", "cute" or "bad smile", the corners of the mouth are all open, that is, the cheekbone muscles are exerting strength, but the degree of opening is different. But the difference between "smile" and other smiling expressions lies in the corners of the eyes, and the rest of the corners of the eyes are bent because of the smile, but only the eyes with the "smile" expression are opened normally, and there is no smile when the eyes look down.
Therefore, the real smile is accomplished by zygomatic muscle and orbicularis oculi muscle, in which zygomatic muscle is controlled by consciousness, while orbicularis oculi muscle can only be activated by real smile.
Some people even say that some smiles have bent corners of the mouth, but others will think that they are smiling because there is a smile in their eyes.
For those who smile with the corners of their mouths bent downward, it is often because the muscles are not used correctly in the process of laughing, which inadvertently dominates the upper orbicularis oris muscle, the lower orbicularis oris muscle and the lower lip muscle, resulting in a smile like a little bitter gourd.
In this case, efforts should be made to activate the zygomatic muscles and often practice saying "eggplant"; Or put a chopstick horizontally in your mouth, gently bite the middle of the chopsticks with your upper and lower teeth, and then laugh. The teeth will be based on the fixed chopsticks, and the strength will be as moderate and natural as possible. At this time, facial expressions and lips will rise just right.
Finally, a good smile is the result of facial muscle interaction. If you want to look good, besides looking good, being happy from the heart is the most important thing. Because no matter how hard the corners of the mouth smile beautifully, the smile in the eyes can't be deceptive.