At Stanford University in 1971, one of history's most notorious psychology studies took place. The experiment simulated a prison environment and assigned students to the roles of guards and prisoners. Hear from participants in this gripping documentary series, about what really happened. Watch The Stanford Prison Experiment: Unlocking The Truth on Sunday 15th June at 9pm, on #NationalGeographic UK. | National Geographic UK

The Stanford Marshmallow Test proved that choosing future reward over instant comfort is a powerful predictor of long-term success. The kids who waited got two marshmallows, and decades later, they scored better on SATs and had stronger careers. This isn't about raw willpower! The successful kids mastered distraction, showing that self-control is an executive skill, not a fixed trait. Challenge everything you know about trauma. Pre-order "The God Shot" from Dr. Eugene Lipov on thegodshotbook.com