I recently watched a viral video in which men were voluntarily subjected to pain similar to what women experience in childbirth. The men began the experiment in good spirits, joking around as electrodes were attached to their abdomens. But as the pain began and eventually increased, they started to grimace and wince in pain—eventually screaming and clutching each other’s hands for emotional support. As I watched the video, I thought about my own wife—the mother of our five kids—and couldn’t help but wonder: How do women endure that kind of suffering?