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
Children's sense of smell is better than adults'.
860
Babies cry but they don't produce tears until one to three months after birth.
238
Half of all Americans over the age of 55 have no teeth.
39
Over 98 percent of Japanese people are cremated after they die.
54
Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
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The offspring of two sets of identical twins are legally cousins but genetically siblings.
63