The complexity of the human brain—86 billion neurons strong with more than 100 trillion connections—enables abstract thinking, language acquisition, advanced reasoning and problem-solving, and ...

He knew that, in the worst cases, immoral ambition can prove fatal. This, of course, is the central theme of his play Macbeth, which inspired my latest book. In it I consider different aspects of ...

I don’t check doors or wash my hands eight times before leaving the house. For many people with O.C.D., including me, it’s more internal: Irrational thoughts enter the mind and remain there ...