Atrophy

Atrophy is when something, like a muscle or an organ in your body, gets really small and weak because it's not being used enough. It's kind of like when you stop playing with your toys for a long time, they get dusty and old and don't work as well anymore.

Our bodies are made up of lots of different parts that work together to help us move and be healthy. When we use our muscles or organs a lot, they get stronger and bigger. But if we don't use them enough, they can shrink and become weaker. This can happen if we don't exercise enough or if we're sick and can't move around as much.

When an organ in your body, like your liver or your brain, starts to atrophy, it can cause problems with how that part of your body works. For example, if the muscles in your legs atrophy because you're not using them enough, it might be harder for you to walk or run.

So, it's really important to keep our bodies active and healthy, so that everything can work the way it's supposed to!