Alex Honnold's amygdala: Analyzing a thrill-seeker's brain

What makes thrill-seekers' minds different from ours?

J.B. Mackinnon's winning Magazine story sheds some light on the mind of high-sensation seekers, specifically ropeless rock climber Alex Honnold. Mackinnon reflects on his inspiration for the story and shares how he approached Honnold, who recently completed his greatest climb.