Does the knife hidden under the covers affect people's health?

Lying in bed in a safer place has no effect on people. On the contrary, if we want to escape, it may be a rainy day. Is it beneficial? But it used to be like this. If we behave well now, we generally don't need to lie down. Uh, how can I put it? Uh, your personal situation, special treatment. In this troubled times, people are in the Jianghu, and his knife is useful to them. It can be used for extra self-defense, but it's best to put it in a safer place, so it's not good to accidentally hurt yourself. If pure tangdao has any influence on human body, I think it should have little influence.