While some studies suggest a correlation between more past partners and higher infidelity rates, particularly for women, many experts emphasize that a higher "body count" doesn't guarantee cheating, as character, commitment to a current partner, and individual relationship dynamics matter more than past numbers; cheating stems from factors like dishonesty, dissatisfaction, or personal issues, not just history.
A population level, body count does predict tuning. To give you an idea in McCrivi's analysis, people with a body count above five were about twice as likely to cheat as individuals with a body count below five. There's nothing magical about the number five.
Men are statistically more likely to cheat. It's like 20% of men in marriages cheat vs. 13% of women. But those numbers are changing. Men are becoming more loyal to their partners, while women are creeping up and becoming increasingly likely to cheat.
Research shows that men with higher testosterone levels tend to exhibit more cheating behavior. They also exhibit more risk-taking behavior and seek more positions of power.
The number of people someone has slept with in the past before meeting you has nothing to do with their value as a person, and this message is important to share. Read more: Living Well. Relationships.
But it does provide some rough guidelines as to how soon may be too soon to make long-term commitments and how long may be too long to stick with a relationship. Each of the three numbers—three, six, and nine—stands for the month that a different common stage of a relationship tends to end.
The 2-2-2 relationship rule is a guideline for couples to keep their bond strong and fresh by scheduling regular, dedicated time together: a date night every two weeks, a weekend getaway every two months, and a week-long vacation every two years, which helps prioritize connection, break routine, and create lasting memories. It's a framework to ensure consistent quality time, even with busy schedules, to prevent boredom and strengthen partnership.
The workplace is where most affairs begin. It doesn't hurt that we usually dress nicely and are on “good behavior” at work. Plus, having shared passions about projects (or mutual annoyance at a boss or co-worker) provides the perfect breeding ground for an affair.
Based on the researchers' findings, the people most likely to cheat are those who are both aggressive (high testosterone) and stressed (high cortisol).
Among ever-married adults ages 18 to 29, women are slightly more likely than men to be guilty of infidelity (11% vs. 10%). But this gap quickly reverses among those ages 30 to 34 and grows wider in older age groups. Infidelity for both men and women increases during the middle ages.
The 80/20 rule in relationships explains cheating as the temptation to abandon a solid partner (80% good) for someone new who seems to offer the missing 20% of needs, a pursuit often leading to regret as the new person lacks the original 80%. Infidelity often arises from focusing on flaws (the 20%) rather than appreciating the substantial good (the 80%), making an affair partner seem appealing for fulfilling that small gap, but ultimately resulting in losing the valuable foundation of the primary relationship.
There isn't one single "best" predictor of cheating; rather, it's a combination of factors, with relationship dissatisfaction, low sexual satisfaction, mismatched sexual desire, and poor communication being the strongest predictors, often alongside individual traits like insecure attachment styles, impulsivity, and a history of infidelity. Ultimately, a lack of emotional connection and unresolved relationship issues significantly increase the risk, according to this Psychology Today article, this National Institutes of Health article, and this Medium article.
Cheating on a partner doesn't always mean love is gone.
Many who cheat still feel love for their partner and guilt for the infidelity. Cheating can stem from emotional distance, insecurity, or the fear of missing out. Addiction, stress, or past trauma can drive infidelity without negating love.
In fact, affairs are more common than you'd think. An estimated 60% of men and 45% of women have had an affair within their marriage.
Body count shouldn't matter in relationships. The amount of people someone has slept with in the past has no impact on their current relationship or their worth as a person. However, some people may become jealous or insecure when learning of a partner's high body count.
Studies show that less than 2% of relationships starting in affairs last more than 2 years, and the majority of those know by 6 months that they are not happy in the relationship, but feel as though they have to make it work because they blew up their life to be with that person.
Participants self-reported cheating, and analysis of their motives revealed eight key reasons: anger, self-esteem, lack of love, low commitment, need for variety, neglect, sexual desire, and situation or circumstance.
Simple acts like holding hands, hugging, or cuddling release oxytocin, often called the “love hormone,” which helps build trust and makes us feel connected and content. Even small gestures, like a gentle touch on the arm or a quick kiss, can remind each other of the warmth and affection shared.
In surveys of individuals who have cheated, falling out of love, seeking variety, and feeling neglected were the most commonly cited reasons, followed by situational forces, a desire to raise self-esteem, and anger with a partner.
The 7-7-7 rule for couples is a guideline for maintaining strong connection by scheduling dedicated time: a date night every 7 days, a weekend getaway (or night away) every 7 weeks, and a longer, kid-free vacation every 7 months, all designed to fight drift and routine by ensuring consistent, intentional quality time, though flexibility is key.
In most cases, affairs end peacefully and in secret. By their very nature, there is not much of a commitment to hold them together, and a desire to do the "right thing" is usually the excuse an unfaithful spouse uses to end it. But the real reason is usually that the affair has become more trouble than it's worth.
So the most likely time for a person to cheat is the first few years after tying the knot; when the novelty of being a newlywed starts to wear off. The next age range for when individuals are most likely to cheat on their partners is the group falling between the ages of 19 and 29.
1. Lack of Honesty. Often when we think of honesty, notably honesty in marital relationships, we think of a very tangible “where were you last night” kind of honesty. While this is obviously critically important, there are many other kinds of dishonesty that can destroy marriages.
survived the dreaded two-year mark (i.e. the most common time period when couples break up), then you're destined to be together forever… right? Unfortunately, the two-year mark isn't the only relationship test to pass, nor do you get to relax before the seven-year itch.
Proceeding chapters introduce the Five Cs—Communication, Compromise, Conflict Resolution, Compassion, and Commitment—and speak about them within the context of the case study.