Your body has a lot of parts. And some of them are vital. Without your vital organs functioning, you won't live. How many vital organs are there? After looking around online it seems there is some disagreement as to how many there are but everyone agrees there is more than one. Life is complicated. There isn't just one organ that has to function and you can live, but several of them have to be working or you won't make it. The majority of your vital organs functioning isn't enough. If one goes out, that's it. Have you ever thought about how complicated your body is?