Do you ever walk past someone who smells absolutely alluring? Maybe you even do a double take? Scent is a major component of our attraction to those around us, but how much does it actually impact our romantic decisions? Pheromones have long been documented in the animal kingdom, but what about in humans? On this episode, professor Tristram Wyatt joins Dr. Sanjay Gupta for a deep dive into the world of pheromones, how they work and the search for the mysterious human sex pheromone.