Women rate men more attractive if other women are looking and smiling at him.
17
Only about 2% of the world population has green eyes.
36
The world's shortest man measures only 21.5 inches.
73
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
Most people smile when they are frustrated, according to a study.
15
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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Senegalese women spend an average of 17.5 hours a week just collecting water.
27