Why did plants evolve to be caffeinated? When did humans start using caffeine? What are the benefits of caffeine? Can caffeine be dangerous and is [...]

If the universe is teeming with life, and even a fraction of that life is intelligent, where are all the aliens? Join Jim and Kim [...]

Alcohol is, by far, the most commonly used addictive drug, but how much do you really know about it? How does alcohol interact with the [...]

Kim and Jim tell you how to hack your reward system! What is the brain’s reward system and why did it evolve? Is it possible [...]

Kim interviews Dr. Benicio Frey about the future of depression treatment. What is depression and what are the symptoms? How is depression treated? How important [...]

Jim Davies and Darren McKee talk about happiness. What is happiness? What does science say about how people can be happier? Find out the answers [...]

Jim interviews Dr. Richard E. Nisbett about Eastern and Western thinking. What are the differences between Eastern and Western thinking? How do economic differences impact [...]

Kim interviews Michael Hildebrand about the topic of pain. Does everyone experience pain the same way? Why do we experience pain? Is there such a [...]

Kim interviews Jim about the phenomenon of geniuses. Are there as many geniuses born today as there were previously? Are groundbreaking scientific discoveries still being [...]

Jim interviews Carole Hooven, Harvard evolutionary biologist and author of the new book T: The Story of Testosterone, the Hormone that Dominates and Divides Us. [...]