Cheating: Your Voice May Say It All...

People perceive men with lower voices (e.g., Barry White) and women with higher voices (e.g., Mariah Carey) as more likely to cheat. Why? A low male voice indicates high testosterone, while a high female voice indicates high estrogen.

O'Connor, J., Re, D., & Feinberg, D. (2011). Voice pitch influences perceptions of sexual infidelity. Evolutionary Psychology, 9, 64-78.