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Why are we obsessed with the things we want and bored when we get them?

Why is addiction perfectly logical to an addict?

Why does love change so quickly from passion to disinterest?

Why are some people diehard liberals and others hardcore conservatives, no matter the argument against them?

Why are we always hopeful for solutions even in the darkest times—and so good at figuring them out?

The answer is found in a single chemical in your brain: dopamine. Dopamine ensured the survival of early man. Thousands of years later, it is the source of our most basic behaviors and cultural ideas—and progress itself.

Dopamine is the chemical of desire that always asks for more—more stuff, more stimulation, and more surprises.

It is undeterred by emotion, fear, or morality.

It is why we seek and succeed; it is why we discover and prosper.

Yet it’s also why we gamble and squander.

From dopamine’s point of view, it’s not the having that matters. It’s getting something—anything—that’s new. From this, we can understand in a revolutionary new way why we behave as we do in love, business, addiction, politics, religion – and we can even predict those behaviors in ourselves and others.

In The Molecule of More: How a Single Chemical in Your Brain Drives Love, Sex, and Creativity—and will Determine the Fate of the Human Race, George Washington University professor and psychiatrist Daniel Z. Lieberman, MD, and Georgetown University lecturer Michael E. Long present a life-changing proposal that tells us why winners cheat, why geniuses often suffer with mental illness, why nearly all diets fail, and why the brains of liberals and conservatives really are different.