A genuine smile takes up to 12 muscles (2 muscles to crinkle the eyes, 2 to pull up the lip corners and nose, 2 to elevate the mouth angle, and 2 to pull the mouth corners sideways). Beware, a fake smile takes only two muscles…
On the other hand, a frown needs 11 muscles.
Laughter uses muscles on the face, plus your abs and other stomach muscles. When having a really good laugh, you can be using up to 80 muscles! Laughter activates the immune system, decreases “stress” hormones, relaxes the muscles, reduces pain, strengthens the heart, regulates blood pressure, increases respiration.
So the best facial exercise, abs exercise, and well-being exercise is to LAUGH !