Great news for Tiger Woods, Jesse James and Eliot Spitzer: a new study suggests that cheating may have more to do with your biology than your greedy penis. Justin Garcia, a researcher from SUNY Binghamton, recently took DNA samples from 181 college students for his study. He examined the DRD4 gene, and found a variable of a person’s D4 gene makes them prone to one-night stands, infidelity and uncommitted sex. Garcia plans on doing a larger study to back up the research, but he doesn't think this lets cheaters off the hook: “It is not an excuse. There is never an excuse for bad behavior in terms of relying on our biology." Pshaw, the First Wives Club may agree with that, but they're fictional. Try telling that to the Cheaters' Club.