Yawns are more contagious among people with closer relationships.
163
76% of Americans celebrate New Year's Eve in groups of less than 20.
55
Most of the world's people must walk at least 3 hours to fetch water!
38
Dutch, on average are the tallest people.
187
Men fall in love faster than women do.
32
The single biggest predictor of love is proximity.
30
On average a woman has 4 sexual partners in her lifetime.
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