People change. Frequently. Forget statistics, built on how many people admit their infidelity. Instead, consider, for example, that 10% of children brought up the men who think they are their fathers, but in fact it is not.

In a classic experiment, men and women who are standing monogamous relationship, they asked if they are ready to change the partner. Men often say they are ready to change Treason: Fall or loyalty to yourself? . However, when people later offered the opportunity to go on a date with a stranger, the difference between the sexes disappeared. Women who are in a relationship, as well as men, are willing to take this opportunity.

What affects the willingness of a person to a change? Women are more prone to changes during ovulation. In this period they become more attractive men with strong masculine traits - active, muscular, with wide eyebrows and a prominent chin. Their regular partners may not have these characteristics. Women should "double mating strategies" - create a permanent alliance with a partner who takes care of her and their children, but tend to look for the best genes outside the relationship. Tall women often change - perhaps the case in elevated levels of testosterone, which affects the growth and infidelity.

And men and women are important personality traits and self-esteem. Men with high self-esteem change often, perhaps because they believe that they have a right. Wealth increases the effect. For women, on the other hand, low self-esteem increases the likelihood of infidelity, perhaps because they are looking for a way to assert themselves.

Very attractive women often change. Blame the hormone estradiol, fertility rate. Women with high levels of this hormone are attractive in appearance and estrogen suggests their brains that they have options.

And, of course, infidelity affects the environment. If a woman is to assure that it has a lot of interesting possibilities for change - for example, it reads in the newspaper that in her city an excessive amount of free men - it will be more inclined to seek pleasure elsewhere. The same is true for men.

Who tends to change

• Personality traits: extrovert

Effect: Seekers of vivid impressions and self-confident extroverts often satisfy their sexual desires.

• The property personality: emotional stability

The effect: less emotionally stable person more inclined to change, possibly because they are not confident in the strength of the existing relationship.

• Personality traits: openness

Impact: Users sweeping views change often. They tend to try new things and fulfill their desires.

• The property of the person: the desire to be nice to others.

Effect: The people less concerned about the comfort of others, more likely to change because they are less concerned about the possibility of suffering partner.

• Personality traits: Conscientiousness

Effect: Less than conscious people change more often - they can not control impulses, and less care about morality.

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