Why do we remember some events vividly and forget others quickly?

We remember some events clearly and forget others quickly because some things stick to our brain like gum on a shoe, while others slip away like water from a sponge.

Imagine your brain is like a toy box, it can hold lots of toys, but not all get played with every day. When you have fun or something exciting happens, it's like getting a shiny new toy that you just have to play with again and again. That’s why you remember birthday parties, funny jokes, or the time you fell off your bike, they feel important and lively.

But if something is boring, too quiet, or happens quickly, it's like a toy you only look at once. It doesn’t get played with much, so it gets forgotten easily. That’s why you might not remember what you had for breakfast unless it was something super special, like pancakes with syrup.

Think of your brain as a storybook, some stories are colorful and loud, so they stay in your mind. Others are just plain and quiet, so they fade away fast.