Sexy men reduce sisters ...

Men who grow up in a large number of sisters are less sexy. Such a surprising conclusion reached by scientists.

Can you call the actors Tom Cruise and Jackson Rathbone enough sex? Meanwhile, Tom grew up next to the two sisters, and Jackson just three. But a group of psychobiology University of Texas believes that a large number of sisters, the boy has a direct impact on its sexuality .

Of course, this does not apply to sexual orientation, which is generally laid before birth, according to most scholars. We are talking about the formation of manners and body language, which should in future involve the man women. So from having a lot of sisters, according to the scientists, this big problem.

Genes determine the personality and behavior of the person, but the environment early in life, they say, "wings" all under a certain form. The researchers separated a group of newborn rats, distributing them in any male-to-peer environment, or females. Later it turned out that the grown together with females, males spent less time for mating as opposed to those who grew up with the males. This was due to the fact that females did not invite them to mate, signaling their "availability" perturbation ears.

These studies are published in the journal Psychological Science. "If the female rats want to attract the Cavaliers, they start moving the ears, - said study author David Crews. - It drives males crazy. But males that have been grown close to females, such games are rare. And it's people because the final formation of personality in humans occurs in childhood and adolescence. The environment is important, but not defining. "

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