What Does Love Hurt? with Dr. Justin Garcia

In the animal kingdom, pair bonds are rare—only about 3% of mammals form them—but humans are among that group, and our biology is deeply shaped by that fact. Dr. Justin Garcia, executive director of the Kinsey Institute and an evolutionary biologist by training, sat down with host Nama Raza to explore the deep history of romantic love, the biology of attraction, and why so many of our assumptions about sex and relationships are wrong. The conversation ranges from the evolutionary origins of kissing to the rise of singledom, the neuroscience of heartbreak, and the surprising truth about what men and women actually want from a partner.

The Evolutionary History of Love and Marriage

Garcia argues that romantic love is not a Victorian invention but something baked into human physiology for millions of years. Drawing on the work of the late biological anthropologist Helen Fisher, he explains that pair bonds emerged around four million years ago, helping early humans cooperate and disperse across the globe. The agricultural revolution, roughly 12,000 years ago, changed the stakes: as societies became sedentary and accumulated property, marriage shifted from a romantic bond to a political and economic arrangement. Peasants, who had no resources to trade, continued marrying for love, while elites used marriage to consolidate power and land. The third major shift, Garcia says, is t