Breasts: The Real Reason Men Love Them

Young woman standing with arms crossed with people in background
Young woman standing with arms crossed with people in background

Jokes about breasts, and men looking at breasts, are such a comedy staple they've become a kind of go-to cliché. How many times have we seen a man talking to a curvaceous woman only to have her point to her own eyes and say "Hey, buddy, up here!"?

It's funny -- or, at least, it was funny the first dozen times we saw it -- because it's true. The male eye does have a way of drifting south. But why? Why are heterosexual men so fascinated by women's breasts that we sometimes act as if the breasts are the seat of the soul?

Well, we happen to be heterosexual men. We also happen to be men interested in biology -- one of us, Larry, is one of the world's leading experts in the neuroscience of social bonding. So we've been thinking about this, and, in our new book, The Chemistry Between Us: Love, Sex, and the Science of Attraction, we propose an answer.



Men are generally pretty happy to oblige. As the success of Hooters, "men's" magazines, a kajillion websites, and about 10,000 years of art tell us, men are extremely drawn to breasts, and not because boys learn on the playground that breasts are something that they should be interested in. It's biological and deeply engrained in our brain. In fact, research indicates that when we're confronted with breasts, or even breast-related stimuli, like bras, we'll start making bad decisions (and not just to eat at Hooters).




Some evolutionary biologists have suggested that full breasts store needed fat, which, in turn, signals to a man that a woman is in good health and therefore a top-notch prospect to bear and raise children. But men aren't known for being particularly choosy about sex partners. After all, sperm is cheap. Since we don't get pregnant, and bear children, it doesn't cost us much to spread it around. If the main goal of sex -- evolutionarily speaking -- is to pass along one's genes, it would make more sense to have sex with as many women as possible, regardless of whether or not they looked like last month's Playmate.


We think both of these explanations are bunk! Rather, there's only one neurological explanation, and it has to do with brain mechanisms that promote the powerful bond of a mother to her infant.






For more, including the male side of this equation, see our book, "The Chemistry Between Us."

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