Why do people still receive electroshock therapy? What is the effect of a visual impairment on the brain? And is there anything we can do to restore it? Do we only use 10% of our brain? Is there a link between rheumatoid arthritis and anxiety? Can you unlearn sleeping in the dark? Why is some information stored so quickly in the brain, while other information takes much longer? How does stress affect your brain? Why is sleep so essential? What happens in the brain when you take psychedelics? Why is it easier to learn a language as a kid?