Five tests to determine if your partner will cheat

Predict your man's tendencies

by Paul J. Zak in The Moral Molecule

In my last post I discussed how the interaction of three hormones, oxytocin, arginine vasopressin, and testosterone create a chemical soup that can lead men to stray. I presented evidence that though the male brain is made to bond with a mate and raise children, the male genitalia suggest a high degree of sexual infidelity in our lineage. Many social, religious and philosophical traditional prohibit adultery because they seem to have implicitly understood that having sex, which releases the bonding hormone oxytocin, can cause us want to be with a sexual partner more and more, leading to family disharmony.

The medical secret behind Mona Lisa's smile?

Forget the smile - Mona Lisa's eyes reveal a penchant for fatty foods
For centuries, art historians have been troubled by Mona Lisa's enigmatic smile - but, according to one doctor, her cholesterol levels were more worrying.