Helen Fisher

“If we remained perpetually infatuated, we couldn't eat, sleep or work.”

“Barriers tend to intensify romance. It's called the 'Romeo and Juliet effect.' I call it 'frustration attraction.'”

“Your sweetheart calls you by another's name. His eyes linger too long on your best friend. He talks with excitement about a girl at work. And the fire catches. Jealousy - that sickening comb...”

“We still have community, but we don't seem to have local community. Even in a small town where you know your neighbors and your mother's down the street, they're not in arm's length.”

“As societies continue to loosen their standards regarding what is appropriate female and male behavior, I think we are going to realize we have not only underestimated women, but also men.”

“After a man falls madly in love, he no longer cares how old she is.”

“There's more than one person on the planet. When you're madly in love, that's not what you think.”

“Romantic love allows you to focus mating energy. Attachment sustains that relationship as long as necessary to raise your baby.”

“Mothers really were not built to raise babies not only by themselves, but with only a partner. For millions of years, a woman had much more than just her husband to help rear her young... Th...”

“Women are very attracted to a low voice because it's linked to testosterone, which for millions of years was a sign that men had very good spacial skills and would have been very good at hun...”

“More and more of us live segmented, compartmentalized lives. This isn't natural. For millions of years, our forebears knew everyone around them and everyone knew them.”

“Natural beauty really entices men. They will tell you this time and time again, and studies consistently prove it.”

“Throughout evolution, ostracism was death indeed.”

“Liberals and conservatives are looking for entirely different things. Their attitudes toward romance and how they court are really dramatically different. There's almost no overlap.”

“Nobody gets out of love alive. You turn into a menace or a pest when you've been rejected.”

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

“Psychologists maintain that the dizzying feeling of intense romantic love lasts only about 18 months to - at best - three years.”

“We all have restlessness in long-term relationships.”

“Office romances are few, short, and not usually destructive.”

“Romantic love is an addiction.”