Some recent studies have suggested a positive correlation between semen quality and intelligence. But do smart men really have better sperm? In this episode, Molly and Cristen sift through a wealth of research in an attempt to answer that question.

According to stereotypes, men find women with small feet more attractive than large-footed ladies. Is there any science to back up that claim? Molly and Cristen discuss what studies reveal about foot size and sexual attractiveness in this episode.

Traditionally, cooking has been considered a female task. Yet in the professional realm, men predominate. Why? Do men and women cook food differently? Molly and Cristen explore gender issues in the culinary world in this episode.

In most modern cultures, it's traditional for men to propose marriage to women. But where did this tradition come from? Should women propose to men? Molly and Cristen investigate the origins and cultural significance of marriage proposals in this episode.

Doctors have identified a condition called andropause that affects middle-aged men's moods and hormone levels. It's sometimes referred to as "male menopause," but is that really an accurate description? Molly and Cristen investigate in this episode.

Popular culture would suggest that heterosexual men and women can't have purely platonic relationships, but is this claim really valid? Molly and Cristen take a closer look at cross-sex friendships in this episode.

In today's episode, Molly and Cristen tackle one of the biggest gender stereotypes out there: Men are better drivers than women.

To some, facial hair simply represents a man's style or shaving preferences. But others argue that facial hair symbolizes masculinity. Molly and Cristen explore a topic that's close to their male listeners' hearts (and faces) in this episode.

Both genders can be bullies, but their methods tend to be different. Learn more about female bullying, from the schoolyard to the workplace, in this episode of Stuff Mom Never Told You.

Do men and women cheat for different reasons?

In this episode of Stuff Mom Never Told You, Molly and Cristen discuss what studies and anecdotal evidence suggest about male and female cheating.