Hi Evie! You know how sometimes you might get scared when you see a big loud animal or when you fall down? Well, some people have feelings that stay with them after something really scary or sad happens, even if it happened a long time ago.
They can remember the scary thing, and it makes them feel sad or scared again. This is called PTSD, which means they're feeling those big feelings again and again. But just like how we can talk and play to feel better, there are big people, like doctors or family, that can help them feel happy and safe again!