When I was young, I used to drive around Canada's country-side with my grandfather. Both my brother and I would complain about the smell of cow manure and my grandfather told us "take a deep breath boys, it's good for your lungs". So everytime I smelled manure, i would take a deep breath to help my lungs get stronger.
A childhood belief about general

others believed things like this
- My older brother told me that everytime you sneezed your lungs would bleed. I believed this until I was 21!— Gem
- When I was young I used to believe for some reason that being asthmatic meant you were born with no lungs.Anon
- If you hold your breath and make a wish under a highway tunnel it will come true....I still hold my breath :)— aj
- i used to believe there were invisible sharks in the deep end of the pool, thanks to my older brother.— Melissa
- My sister told me once that if I sucked too much helium out of a balloon, my lungs would explode.Anon
- I used to believe that the lungs where tubes in the neck.— Some Guy