One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
-86
Infants spend more time dreaming than adults do.
102
Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
Identical twins do not have identical fingerprints.
79
Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
131
Every human spent about half an hour as a single cell.
144