Forty percent of Americans have never visited a dentist.
33
Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13
Up to the age of six or seven months a child can breathe and swallow at the same time. An adult cannot do this.
165
Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
7
Children's sense of smell is better than adults'.
860