Vsauce

Would you reroute a train to run over one person to prevent it from running over five others? In the classic “Trolley Problem” survey, most people say they would. But I wanted to test what people would actually do in a real-life situation. In the world’s first realistic simulation of […]

Technology isn’t just changing our lives. It’s literally changing our brains — and maybe for the better. In this episode, I’m a human lab rat in a groundbreaking study at UC Irvine, where scientists test how playing 3D video games affects my spatial memory. Will 10 days of gaming improve […]

Psychology. Neuroscience. Drugs. All can be tools of interrogation. In this episode, an expert shows me how to coerce unsuspecting subjects into signing false confessions; a police psychologist questions me about my personal life after I am injected with a truth serum; and I match wits against a new brainwave-reading […]

Full episode: https://www.youtube.com/watch?v=U3lWVLuc6CE Peruvian Shaman Daniel performs his icaro (healing chant) in its entirety.

What makes a hero? Dr. Philip Zimbardo, the psychologist behind the infamous Stanford Prison Experiment, now runs seminars to teach everyday people how to be heroes. But can heroism be learned? I put his unsuspecting students into a fake crisis situation to see if they would act heroically. Also, I […]

Exactly how do placebos work? Researchers believe that, through the power of suggestion, placebos may unleash the power of our own subconscious minds to cure ourselves. I was honored to participate in McGill University’s groundbreaking study of an accessory-assisted placebo. Could a fake, non-functioning “Sham Brain Scanner” enable children with […]