Brain chemistry of love--hooked on a feeling

Washington Post:

It's all about dopamine, baby, this One Great True Love, this passionate thing we'd burn down the house and blow up the car and drive from Houston to Orlando just to taste on the tip of the tongue.

You crave it because your brain tells you to. Because if a wet kiss on the suprasternal notch -- while, say, your lover has you pinned against a wall in the corner of a dance club -- doesn't fire up the ventral tegmentum in the Motel 6 of your mind, well, he's not going to send you roses tomorrow.

Dopamine.

God's little neurotransmitter. Better known by its street name, romantic love.

Also, norepinephrine. Street name, infatuation.

These chemicals are natural stimulants. You fall in love, a growing amount of research shows, and these chemicals and their cousins start pole-dancing around the neurons of your brain, hopping around the limbic system, setting off craving, obsessive thoughts, focused attention, the desire to commit possibly immoral acts with your beloved while at a stoplight in the 2100 block of K Street during lunch hour, and so on.

"Love is a drug," says Helen Fisher, an anthropologist at Rutgers University and author of "Why We Love: The Nature and Chemistry of Romantic Love." "The ventral tegmental area is a clump of cells that make dopamine, a natural stimulant, and sends it out to many brain regions" when one is in love. "It's the same region affected when you feel the rush of cocaine."

Passion! Sex! Narcotics!

Why do we suspect this isn't going to end well?

Because these things are hard-wired not to last, all of them. Short shelf lives. The passion you fulfill is the passion you kill. The most wonderful, soaring feeling known to all mankind . . . amounts to no more than a narcotic high, a temporal state of mania.

"Being in love, having a crush on someone is wonderful . . . but our bodies can't be in that state all the time," says Pamela C. Regan, a professor of psychology at California State University, Los Angeles, and author of "Mind Games: A Primer on Love, Sex and Marriage." "Your body would fizzle out. As a species, we'd die."

Some of these love chemicals in the brain, scientists measure by the picogram, which is a trillionth of a gram.

...

Serotonin, another neurotransmitter in the brain associated with obsession, depression and racing thoughts, was greatly affected -- right down to the molecular level -- by romance and surging dopamine. People newly in love and people with obsessive-compulsive disorder showed the same lowered levels of the "platelet 5-HT transporter." In other words, dopamine appears to suppress serotonin, which in turn triggers obsessive-compulsive thought patterns.

You can't stop thinking about Dave. No wonder! Dave's hiding under a wet flap of cortex!

Your brain is officially in love, and it officially is driving you crazy.

...

Someone wrote a captivating song where the words "You make me crazy" are repeated over and over. It is about love of course. This is a very long story, but is pretty interesting. It is not all about chemistry, but apparently love is.