So I noticed how the girl from the Twilight movies is having some kind of liaison with some dude other than her 'vampire' boyfriend. And then these stats just wrote themselves.
It is estimated that roughly 30 to 60% of all married individuals (in the United States) will engage in infidelity at some point during their marriage. Some authorities observe infidelity is involved in 90% of first time divorces.
A 1997 study with Kristina Gordon found "more than half of the marriages that experience infidelity ended in divorce".
27% of people who reported being happy in marriage admitted to having an affair.
In a recent survey of 16,000 university students in 53 countries, 20% of long term relationships began when one or both partners were involved with someone else.[5] Studies suggest around 30–40% of unmarried relationships and 18–20% of marriages are marked by at least one incident of sexual infidelity. Men are more likely than women to have a sexual affair, regardless of whether or not they are in a married or unmarried relationship.
Fifty United Kingdom divorce lawyers were asked to name the most common causes of their cases in 2003. Of those who cited extramarital affairs, 55% said it was a cheating husband that precipitated divorce while 45% it was a wife's cheating.The trend is that the rates have been increasing.
Rates among older women tripled from 5% in 1991 to 15% in 2006; rates among men rose from 20–28%. About 20% of younger men and 15% of younger women say they cheated, up from about 15% and 12%, respectively. Infidelity studies show that extramarital sex occurs in up to 25% of heterosexual marriages in the USA. Many experts believe this increase in cheating is due to greater opportunity (time spent away from a spouse) and young people developing the habit of having multiple sexual partners before they get married.
Between 2–4% of children are conceived as a result of an affair. A 2005 scientific review of international published studies of paternal discrepancy found a range in incidence from 0.8% to 30% (median 3.7%), suggesting that the widely quoted figure of 10% of non-paternal events is an overestimate.
From an evolutionary perspective, men are theorized to maximize their fitness by investing as little as possible in their offspring and producing as many offspring as possible, due to the risk of males investing in children that are not theirs. Women, who do not face the risk of cuckoldry, are theorized to maximize their fitness by investing as much as possible in their offspring because they invest at least nine months of resources towards their offspring in pregnancy.
According to the authors of "The State of Affairs", there exists a common belief that a fundamental purpose of marriage is to control sexual partnering. However, the problem lies in the fact that marriage cannot control sexual desires, and the messages our culture provides suggest it can’t satisfy them. The belief is that it's natural for humans to have sexual desires but they cannot be acted on if humans live together and engage in marriage.
David Atkins, a research associate professor at the University of Washington in Seattle, outlined the problems researchers face in getting accurate information on the subject. Responses to the survey question "Have you ever had sex with someone other than your spouse while you were married?" aren't clear-cut, he said. "The first thing we have to grapple with is honesty. We know that is a significant issue," he said, explaining that research published last year found that some won't admit infidelity in person but will anonymously. Also, some people interpret sex as intercourse and others don't, he said. The most reliable data, researchers say, comes from that question posed in the nationally representative General Social Survey, a face-to-face interview. Atkins' new study of trends over a 15-year period (1991–2006) in which 19,065 people participated found that infidelity rates were climbing among certain age groups: those 60 and older and those 35 and younger.
American biologist Alfred Kinsey found in his 1950-era studies that 50% of American males and 26% of females had extramarital sex. [1] Depending on studies, it was estimated that 26-50% of men and 21-38% of women,[2] or 22.7% of men and 11.6% of women had extramarital sex.[3] Other authors say that between 20% and 25% Americans had sex with someone other than their spouse.[4] Durex's Global Sex Survey has found that 44% of adults worldwide have had one-night extramarital sex and 22% have had an affair.Could be illegal too:
In some East Asian countries or regions, including North Korea, South Korea and Taiwan, adultery continues to be a crime. In the Philippines, adultery (defined as consensual sexual intercourse between a married woman and a man who is not her husband) and a related act of concubinage (a man cohabiting with a woman who is not his wife), are considered crimes under the Revised Penal Code of the Philippines.Check out this cat-based infectious disease:
In Pakistan, adultery is a crime under the Hudood Ordinance. The Ordinance sets a maximum penalty of death, although only imprisonment and corporal punishment have ever actually been imposed.
In Indian law, adultery is defined as sex between a man and a woman without the consent of the woman's husband. The man is prosecutable and can be sentenced for up to five years (even if he himself was unmarried) whereas the married woman cannot be jailed.
In Southwest Asia, adultery has attracted severe sanctions, including death penalty. In some places, such as Saudi Arabia,[45] the method of punishment for adultery is stoning to death.
In the U.S. Military, adultery is a potential court-martial offense.
Researchers estimate that anywhere from one-third to half of the world's human population is estimated to carry a Toxoplasma infection.
...infection might increase the number of accidents by as much as one million crashes per year.
In a 2012 study of 45,000 women in Denmark, researchers found that women infected with T. gondii are at twice the risk of committing suicide compared to non-infected women, and this risk increases as levels of IgG antibody against T. gondii increase. Infected women also had a 1.8 relative risk of attempting violent suicide compared with non-infected women.