The Most Dangerous Word in the World

http://www.myneurogym.com/the-most-dangerous-word-in-the-world/#gs.d5f6dc7005b44ca7ae7f51ace34c3889

If I were to put you into an fMRI scanner–a huge doughnut-shaped magnet that can take a video of the neural changes happening in your brain–and flash the word “NO” for less than one second, you’d see a sudden release of dozens of stress-producing hormones and neurotransmitters.