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
Only 2% of the worlds population is blonde.
15
Yu Youzhen, a Chinese millionaire, works as a street sweeper for the sanitation department to set an example for her children.
11
A study had men report their own penis size, and the average was found to be 6.1-6.5 inches. A subsequent clinical study actually measured penises, and found the average size to be 5.1-5.7 inches.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
8
Women who are romance novel readers are reported to make love 74% more often with their partners than women who do not read romance novels.
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