You might not be surprised to hear that money may cause women to cheat, but the explanation for this is probably not going to go quite the way you thought. According to relationship expert John Gray, Ph.D. and author of best-selling novel Men Are from Mars, Women Are from Venus, women are more likely to cheat when they have money, not because they're going out looking for it. Gray says a woman's financial success affects her testosterone levels, which, in turn, affects her love life.
"As more women are financially independent, they are less dependent on their partners. This increases their testosterone levels and lowers their estrogen which is a hormone balance more similar to a man's," explained Gray. "This increased testosterone can increase her desire for sex with a stranger or a one night stand for fun. On the other hand, married women who are less financially independent will tend to have lower testosterone and higher estrogen. This balance increases her need and attachment to her partner."
Before you get all riled up, though, it's important to note that Gray isn't saying financial success will automatically make a woman more likely to cheat, just more likely to act on that desire if it exists. "If she is fulfilled in her relationship, she is rarely even tempted to stray," he added.