ELI5: Explain Like I'm 5

working memory

Working memory is like a notebook that you have in your head. You use it to remember things, like the names of people, a phone number, or a list of things you need from the store. It's a short-term memory that lasts for a few seconds or minutes. You need your working memory to think about things, solve problems, and remember facts. It's sometimes called your "mental notebook."