Saliva has testosterone and estrogen. When you kiss, you're having a chemical experience. — Helen Fisher Copy Share Image
We're not very dangerous animals; we don't have a horn like a rhino or quills like a porcupine. — Helen Fisher Copy Share
Of all the foods we share, there is nothing more primordial than meat. It's no surprise that meat-eaters still want a partner who will… — Helen Fisher Copy Share
When chimps threaten, they open their mouth and show their teeth. It's a little like waving a knife in front of you. It's very… — Helen Fisher Copy Share
For so many generations, a woman's only career path was to marry well and to marry up. Those days have changed. — Helen Fisher Copy Share
Almost always, when I'm on TV, the producers who call me, who negotiate what we're going to say, is a woman. — Helen Fisher Copy Share
Jealousy can even be good for love. One partner may feel secretly flattered when the other is mildly jealous. And catching someone flirting with… — Helen Fisher Copy Share
In that early-love stage, you're in that state of exhilaration. You talk till dawn. You become obsessed with 'What does he think?' 'Does he… — Helen Fisher Copy Share
“...if patterns of human love subtly change, all sorts of social and political atrocities can escalate.” — Helen Fisher Copy Share
Women's worst invention was the plow. With the beginning of plow agriculture, men's roles became extremely powerful. Women lost their ancient jobs as collectors. — Helen Fisher Copy Share
As women in industrial societies join the paid workforce, they gain the economic means to depart unhappy marriages more easily. — Helen Fisher Copy Share
Why do we feel jealousy? Therapists often regard the demon as a scar of childhood trauma or a symptom of a psychological problem. And… — Helen Fisher Copy Share
Despite the myth that men are less committed, they are predisposed to desire marriage. — Helen Fisher Copy Share
