Classes on how to keep a relationship safe and grow closer together can benefit both men and women. Is it possible to predict whether or not a partner will cheat? In any given year, about 10% of married people report having extramarital sex; this includes 12% of men and 7% of women. The very low rates of annual dishonesty conceal a far higher prevalence of cheating over the course of a lifetime. One in every four men and one in every seven women over the age of 60 admit to cheating on their significant others. A variety of studies in both humans and animals point to a genetic component to adultery. Although there is strong evidence that dishonesty runs in families, we also know that heredity isn’t everything. The topic of the genetics of infidelity is similarly of little use to anyone until a simple gene test to detect your partner’s tendency to cheat on you is developed.