Alright, so sometimes people's muscles work differently than other people's. And sometimes, it's because they have something called facioscapulohumeral muscular dystrophy.
This is a big long word that describes how someone's muscles slowly get weaker and weaker over time. It usually starts with the muscles in their face and shoulders, and then can move down to other parts of their body.
Imagine you have a toy car that you can pull with a string. At first, the car goes really fast and moves easily. But as you keep pulling the car and playing with it, the string gets tired and worn out. Eventually, the car doesn't move as easily and it gets harder to pull. That's sort of what happens with people who have facioscapulohumeral muscular dystrophy - their muscles get tired and worn out, and it becomes harder and harder for them to move around.
Sometimes, people with this condition can have trouble walking or even just standing up. They might start to use a wheelchair to get around. They might also have trouble eating, talking, or even breathing.
It's important to know that there's no cure for facioscapulohumeral muscular dystrophy. But there are some things that doctors can do to help people feel better and stay as healthy as possible. This might include physical therapy (which is like exercising your muscles with the help of a special doctor), using special machines to help them breathe better, or even just giving them medicines to help with pain or discomfort.
It can be tough for someone with facioscapulohumeral muscular dystrophy, but it's really important to remember that they're still just like any other person who wants to have fun, be with friends and family, and live their best life - they just might need a little extra help.