Memories are odd. You might be able to remember something funny from a birthday party when we were five, but try to remember what you wore last week and you’ll probably come up blank. Why do the things we remember fluctuate so wildly? In this animation from TED-Ed educator Catharine Young breaks down how memories work and why we forget things. By the end you’ll have a better grasp on how to hold onto your memories. Unless you get distracted. Hey, what were we talking about again?