The most tenacious and powerful muscle of human beings is the tongue. People can't spray with their eyes open. It is impossible to commit suicide by holding your breath. Right-handed people live nine years longer than left-handed people. Only 30% people can enlarge and narrow their nostrils. A normal person's eye muscles need to exercise more than ten thousand times. In addition, the human body has many golden sections. 0.6 18 is commonly used in mathematics. The kneecap is the golden section of the thigh and calf. The elbow joint is the golden section of the arm. The navel is the golden section of the human body. Waited a lot. Hope to adopt, thank you.