When I was small, because I knew that if you're dead, your heart doesn't beat, I would regularly check my heart beat to make sure I was still alive.
A childhood belief about general

others believed things like this
- The song called heart of glass mixed me up as a kid. I heard "Heart and ass". — oops
- I used to think that when people had heart attacks someone came and stabbed their heartAnon
- Bronski Beat - Beat Boy
"Meatball
Meatball
Hit that perfect meatball..."— Santa Puncher - I used to think that if you eat pig heart, you could grow another heart and be twice as healthier. Anon
- I thought the song "Party Time" by Moby was actually saying "heart attack" (this was before I knew the title)— Elviessa
- I used to believe that you shouldn't swallow gum because it would stick to you heart and make it stop beating.Anon