You don't come home from the office to spend time with another job. Hopefully you come home to someone you can have a good time with.

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

Women have a better sense of smell than men do, and it's even sharper in the middle of their menstrual cycle, when estrogen levels peak and women are more likely to be deciding whether a man's attractive.

Experiences shape the brain, but the brain shapes the way we view experiences, too.

There is more and more data indicating that there is a biological basis to your political views.

Romantic love is not an emotion. ... It's a drive. It comes from the motor of the mind, the wanting part of the mind, the craving part of the mind.

There's all kinds of reasons that you fall in love with one person rather than another: Timing is important. Proximity is important. Mystery is important. You fall in love with somebody who's somewhat mysterious, in part because mystery elevates dopamine in the brain, probably pushes you over that threshold to fall in love.