This is secret learning kung fu. How can ordinary people have it? There are only a few China. You can't perform and make fun of them like magic. Most of what can be performed is fake. Real kung fu is not common, but it is not without it. It's not impossible to practice.

The principle of acupuncture and moxibustion is to use the explosive force of fingers or other parts of the human body at that moment to control the meridians (including nerves, blood vessels and veins) of human acupoints, so that they cannot function, resulting in partial dysfunction or paralysis of the human body, thus achieving the purpose of restraining people.

This requires explosive force, and ordinary small forces cannot seal human acupuncture points.

You can try it on yourself. When the acupoints are very painful, the veins of blood vessels are suppressed.

Kung fu from a distance, one is in literary works, the other is exaggerated imagination, but it does not rule out the existence of people of this level. But it's hard for ordinary people to do it.