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

by Daniel Z. Lieberman

The early part, passionate love, is dopaminergic—exhilarating, idealized, curious, future looking. The later part, companionate love, is H&N focused—satisfying, peaceful, and experienced through bodily senses and emotions.