I used to believe that my hair grew out of my head from a tightly wound store of it lodged within my skull - I couldn't work out how it stayed away from your eyes on the inside. I also believed that finger nails were already formed in the fingers but stayed soft until they were exposed to air (had they not worked like that then the fingers and wrists would have been rigid - or so I supposed).
A childhood belief about hair

others believed things like this
- i used to think that biting my nails would make my fingers fall off! ;)— Cassandra
- i used to believe that polishing your nails also consisted of painting your fingers. Anon
- I beleived that if i bit my fingers then the nails in my stomach would soon form a hand and rip up my insides!— Amanda T.
- When I was little I believed little men and little women worked inside my body to make everything work.— Ashley
- My sister told me that if I picked my nose there were snail creatures inside of it that would bite my fingers.Anon
- when i was a kid i believed i could make things happen just by snapping my fingers like in mary poppins!!Anon