Learn all about addictions and why some can actually be good for you. Find out why you can't stop checking your phone and why that awful pop song gets stuck in your head. And, discover one of the most addictive sounds in the world.

Nearly every choice you make involves some calculated risk. Explore how your brain evaluates risk in everyday situations and discover why we're all born as risk-takers. Learn to assess risk like your life depends on it, because it does.