This chapter focuses on various states of mind, how our memory works, why we forget things, the debate over intelligence and intelligence testing, and the power of the mind to control states of relaxation and hypnosis. Obviously there are a lot of things, both internal and external, that can affect our current state. Emotions, noise, stress, and of course the use of alcohol and drugs all come to mind. All of these things should be taken into consideration when learning about states of mind and how to control them.
