When I was 8 my grandmother told me that dying your hair would give you cancer. I believed this until I was 12.
A childhood belief about hair

others believed things like this
- When I was little, I thought dying your hair would give you the color AND hairstyle displayed on the box. Anon
- When I was little I thought that dying your hair means you kill your hair.Anon
- I use to believe that when I lost hair that I had cancerAnon
- I use to believe that if my hair fell out I had cancer, and was most likely going to die soon. — Luca
- My friend believed that eating bread crusts or eating mustard will give you curly hair.— Linda from Southern California
- My Grandmother once told me she could unscrew her feet. I believed that for years.— Andy Bettison