The jealous has much useful

The limited jealous in love can bring 3 benefits to people; the fist it can help our ancestors ensure the follow general belong to them "they is ours", the second it can help people have close-knit sentiment, the third it helps people can tend the characters of their children.

According David Buss, a psychologist of Texas University, US, the jealous in love is the form of sentiment it helps people to inspect, recognize and prevent the unfaithful signs of love, David Buss has carried out collected some tens of investigations about jealous whit in 20 years on 40 countries, and finally he come to the conclusion: the jealous in love (is called jealous shortly) is not the bad sign.

The jealous is the intelligent in sentiment, which was ancestors, transmit to their follow general. Buss asserts that "we inherit the jealous from our ancestor, and it is the common issue in any cultural of any country on the world. The jealous, which we feel is the same with ancestor's jealous".

The jealous protects the rights of people

The man was "horn plugging" (it indicate the unfaithful of the wife or husband) can must nature the son or daughter of the "rival" in love, and the woman was "horn plugging" is easy loose her calm or get the serious shocks because her loosed base for herself and her children. In the old age, jealous help the man forecast the unfaithful of his wife, and help the woman can avoid the forsaking from her husband. And it is the way for ancestor to protect their "production strategy".

The conclusion was created from the surveys in Europe, Asia, and America...when a man recognizes that he was "horn plugging" then his heard would beat more than 5 times the normal status, the brow muscles snatched and red face. When the woman recognizes her was "horn plugging" then her eyebrow frown continuously. It prove that two sexes must bear different effects, mean while the man think that the sex relationship can created the realty sentiment then the woman think that the unfaithful in loving is the same with "ending" she usual use the "embargo strategy" and sometime go to the real sex relation ending.

The jealous is the adhesive engines

Eygène Mathaes, a psychological professor of the Western Illinois University, US has investigated about jealous and he saw that the more jealous is more stably loving, in the limited level the jealous is the standard for love, so that some people say "no jealous, no love".

Help children to build their characters

Other team of scientist believes that: the jealous contribute to consolidate the "ego" of children. Children are usually jealous with their brothers or sisters when their parents have partial with their brothers or sisters. Gradually they would recognize that they have not the center of focusing, and they need to share the sentiment of parents, the children would go from this jealous to that jealous and recognize that: I and you is two different bodies.

Through the comparisons, children can realize these different and self-trained their assessing ability. These abilities will follow them until they become adult. Jealous immediately-extinguishing is the same cherishing them to more serious even make children get the sick.

The surveyors at Texas University have observed a 6-mouth child present his or her jealous when he or she saw his or her mother carried other child one harm (but it is just a toy baby in realty). The more than 8-mouth child is usually loudly, through and beat the toy to get more his or her parents' considers. So the parents are not worry about the jealous of their children but they should need to consider with children that never show jealous.