Ashley Madison Scandal: Science Reveals 2 Main Reasons People Cheat

Woman cheating on husband
(Image credit: Iakov Filimonov | Shutterstock.com)

We may never know exactly what drove millions of men and women in committed relationships to log on to AshleyMadison.com to find lovers, but most cheaters fall into two categories, science shows.

At first glance, the reasons for cheating are as varied as the adulterers' lives. Upward of 30 million Ashley Madison accounts may sound like a lot (and some of those accounts may be fake "robot" accounts), but about 1 in 5 men and women in the United States cheat, according to a study published in 2011 in the Archives of Sexual Behavior. (Numbers vary depending on how cheating is defined. Other surveys have shown a big gap between men and women, with more men cheating.)

Latest Videos From
Laura Geggel
Managing Editor

Laura is the managing editor at Live Science. She also runs the archaeology section and the Life's Little Mysteries series. Her work has appeared in The New York Times, Scholastic, Popular Science and Spectrum, a site on autism research. She has won multiple awards from the Society of Professional Journalists and the Washington Newspaper Publishers Association for her reporting at a weekly newspaper near Seattle. Laura holds a bachelor's degree in English literature and psychology from Washington University in St. Louis and a master's degree in science writing from NYU.