When my older sister was little, my oldest sister told her that soap would turn your hair white. She believed that for the longest time.
A childhood belief about hair

others believed things like this
- My oldest sister is 15 years my senior. I used to think that she was older than my mom.— Callie
- My older sister told me squirrels were poisonous, and I believed her until I was 9.— Jenni
- I used to believe that when I got old my red hair would turn pink before it went white.Anon
- I used to believe that cows mooed out of their ears-because my older sister told me they did.— ella
- I used to belief sloths lived in trees outside my childhood home. My older sister told me so.Anon
- a friend of my little sister's had 4 older brothers, so she thought that when you got older you grew a penis!Anon