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And, according to a study at Stanford University School of Medicine, biology makes women irresistible to funny men.
The study involved 22 children aged six to 13. The researchers asked participants to look at a series of clips, some funny and some not so funny.
Their response was measured by a functional magnetic resonance imaging machine (fMRI). After watching the clips, the children answered the questionnaires about the clips on a number scale.
During the funny clips, girl's brains showed more heightened activity than boys. According to the researchers, it meant that the girls felt more of a sense of reward in watching the funny clips than boys did.
"Our data for the first time disclose that sex differences in humor appreciation already exist in young children," they wrote.
And the researchers said this is the reason why attractive women sometimes go for not as physically attractive, but ones with a great sense of humor.
A potential mate's humor is effective in captivating women because "the female brain, particularly the reward circuit, is biologically better prepared to respond accordingly," the researchers added.
But the researchers warn against jumping to any concrete conclusions too quickly.
They noted that the study is relatively small-scale, and a larger participant group would yield better results.
