What happens when you fall into, and out of, love? We get to the bottom of the cuddle hormone oxytocin and find out if the contraceptive pill is good for relationships. And we navigate our way around a fruit flies brain to find out how pheromones make them in the mating mood. Plus, we'll explore if it's scientifically possible, and even ethical, to bring on love in humans. For information regarding your data privacy, visit acast.com/privacy