One in 500 humans has one blue eye and one brown eye.
145
Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
30
Forty percent of Americans have never visited a dentist.
33
About 3000 years ago, most Egyptians died by the time they were 30!
18
Yawns are more contagious among people with closer relationships.
163
You will experience the billionth second of your life when you are 31 years old.
21
Only 10-20% of the population can wiggle their ears and raise one eyebrow.
22
2,500 newborn babies will be dropped in the next month.
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