That qigong thing is very mysterious. In fact, after gathering qi, it is to protect the internal organs, which is the so-called "internal strength." Mainly because after fatigue, the body's resistance is stronger, the bones become hard, there are more cuticles on the skin, and the pain nerves are numb.

If you are hit in the key part after practicing the protector, something will still happen.

If someone greets you with a knife, sword or something of good quality, you will definitely get hurt. I haven't bought armor yet, so in my personal opinion, I should have fighting ability, but don't ask too much, because the hardness of a person's body is limited.

There is also practicing this kind of kung fu, which is obviously very harmful to the body. Maybe after practicing this kind of kung fu, various diseases will follow. ...

If you don't really want to practice, don't practice. I suggest you practice more martial arts and learn Wing Chun, Sanda, Muay Thai, boxing, karate, Brazilian Jiu Jitsu and so on, which will be more helpful to actual combat.

As long as you have enough practical experience and excellent skills to hit the enemy's key points, you can still make people fall to the ground or even die immediately without practicing this martial arts.