Chapter 5: Sleep   Chapter five talked all about sleep and what
happens in our unconsciousness. The most interesting part of the
chapter to me was the part about dreams, because scientists
still do not know why we dream. I personally never remember my
dreams, so the topic is interesting. The chapter listed many
reasons why we dream, such as processing emotions, going over
memories, and learning how to do something, but I want to know
how it is the process works. Freud's Theory of Dreams said that
dreams change our feelings into symbols that we need to
interpret. There are five stages of sleep that involve the body
"powering down", to settling into a deeper sleep, to when the
brain is the most active. Déjà vu was mentioned in the chapter,
another topic I find interesting. Déjà vu is the feeling that
something has happened before, though you know the experience is
new. Jamais vu was also mentioned, which is the opposite. There
are many sleep issues, such as sleep apnea, insomnia,
sleepwalking, and night terrors