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Go to and enter “SHAVINGWITHJOE“ at checkout to get 100 free blades with your purchase. Starting in the 1940s, a new surgery was being explored to help people with severe epilepsy which involved severing communication between the two hemispheres of the brain. It worked, but caused some very strange side effects. As researchers began to study these side effects, it led to an entirely new understanding of the brain; including the surprising fact that we really don’t have control over our decisions. Read more about split-brain experiments in Dr. Michael Gazzaniga’s fascinating book, Who’s In Charge? Here’s a speech Dr. Gazzaniga gave at the University of Edinburgh in 2009: Want to support the channel? Here's how: Patreon: Channel Memberships:
