Have you ever been to a very crowded place like a concert, a festival or a sports event where a lot of people gather together? Well, sometimes too many people can be dangerous if they don't move in an organized way.
When too many people try to go through a small space or try to get to the same place at the same time, like rushing to get in or out of an event, there can be a lot of pushing and shoving. This can cause some people to fall down, and when others try to help them up, they can also fall down.
When people fall down and can't get up, it's like they become a roadblock for everyone else trying to move through that area. The more people that are trying to move through this same space, the more pressure is put on the people who are blocking it. This is called the crowd crush.
If people keep pushing, they can create a lot more pressure on the crowd, making it stronger and stronger. This pressure can make it hard to breathe, and some people might even get hurt or suffocate.
Crowd crushes are very dangerous and can cause people to get hurt or even die. That's why it's important to be careful and stay calm when you're in a big crowd. Remember to move together in an organized way and never push or shove anyone.