“The clear message you should derive from the benefits of mental and physical exercise is that the worst thing you can do to your brain is to be content living a passive life. The habit of passivity is pervasive in our culture, from longing for miracle cures to watching television for hours to being politically apathetic. Physical and mental action is fundamental to maintaining mental health.” CultureMental HealthPassivityA Users Guide To The BrainJohn J Ratey Book:A User's Guide to the Brain: Perception, Attention, and the Four Theaters of the Brain Source: A User's Guide to the Brain: Perception, Attention, and the Four Theaters of the Brain