New research in the field of love and attraction shows that romance - long the domain of poets and philosophers - can be increasingly understood on a molecular level. "The Chemistry of Love and Lust" explores how a complex mix of naturally occurring sex hormones and chemicals influence our impulse to mate, marry and remain monogamous. Links: - The Science of Love - Anatomy of Love: A Natural History of Mating, Marriage, and Why We Stray Producers Note