There exists no culture in which adultery is unknown, no cultural device or code that extinguishes philandering.

Real competition can drive up testosterone, which boosts libido.

Along with our many human propensities, we evolved a huge cerebral cortex with which we make decisions.

Blushing is thought to be linked to increased levels of norepinephrine in the brain, which may be associated with romantic feelings. It signals that we are interested and excited, which is attractive to men.

Overdone lipstick is a deterrent to men. It rubs off easily onto their skin and the edges of their shirts, so it discourages them from kissing, touching, and coming closer to you, which is what they really want to do!

The Internet lets women use words, which is their natural tool. Little girls speak in more complex, grammatical sentences than little boys do, and women never lose that superiority in verbal ability.