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
Yawns are more contagious among people with closer relationships.
163
There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
The average person walks the equivalent of twice around the world in a lifetime
69
Englishmen drink more tea than any person of any other nation (over twenty times more than Americans)
123
Most people smile when they are frustrated, according to a study.
15
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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