Half of all Americans over the age of 55 have no teeth.
39
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
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
Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
Infants spend more time dreaming than adults do.
102
Babies crawl an average of 200m a day.
212