when i was in year 6 (i'm british) my teacher told me that someone once thought if you get tired, your heart stops pumping.
A childhood belief about general

others believed things like this
- when i was a little kid. i used to think that when u hold ur breath ur heart stops.. LOL :P — Annonymus
- Apparently from seeing EKG's on TV, my daughter believes people die when their heart stops "beeping."— Jager
- I used to believe that anyone who wasn't British (as I am) thought of themselves as foreigners!— "velveire"
- The song called heart of glass mixed me up as a kid. I heard "Heart and ass". — oops
- I used to think that when the power goes out, the water also stops working.Anon
- My younger sibling thought that Brittany was the name of the country where British people livedAnon