This is the cause of Love At First Sight ..!

Love at first sight poorer not only influenced by physical factors alone. According to researchers, there are other factors besides appearance makes you feel the love on first sight . On the study, researchers used the fly as experiment materials. They try to pair male and female flies of the same species and also different. The result is, they are more interested in finding female flies and flies choose males from different species.

According to the researchers, the female selects a mate flies through smell. They could smell the male flies which can produce healthy offspring and more.

"We could call it love at first sight. Was not just out of sight, but from the smell, sounds or other sensations that tell the opposite sex that biological family is nearby," says Andrew Clark of Cornell University was quoted as saying by LiveScience.

Researchers also found that the effect of chemical substances and certain proteins produced when the opposite sex meet, is crucial interest. Researchers also found similar results when examining groups of mammals, including humans.

"The success of a woman to produce a child has something to do with the genetic quality of men, especially men who have a genetic as opposed to the woman," said Clark.

Researchers tried using scented shirts for men attract women, and the results are more women attracted to men who upon discovery of genes that appeared to have very opposite her. Uncertainty as to why it happened, but the difference in the immune system and the possibility of avoiding a similar disease to be contributing factors.

"We also found this on the fact that men are attracted to women," said Mariana Wolfner, professor of developmental biology at Cornell.