Chapter 3*

One thing that I learned in this chapter was the different facts about consciousness. This made me think about the fact that the more comfortable you become with something, the less you pay attention to it, which then allows you to focus on other things around you that you may have missed before. But along with noticing new things comes almost a complete absentmindedness. This happens because when something that you do every day i.e. driving to school becomes a habit, you don't think necessarily about the steps in getting there. It's just a natural habit to turn on your turn signal at the right road and all of a sudden realize that you have no idea where you are although you drive that way every single day.

Something I found interesting or surprising was the circadian rhythm. It's interesting to think that your body runs on your own internal 24-hour cycle. I mean it's common sense to know that your body in continuously running (heart, internal organs..) But to think that it has it's own biological clock is interesting. This clock keeps track of all of the "happenings" going on inside you. Such as when a woman reaches a certain age where having children could start becoming a risk they say that her biological clock is "ticking." This clock also keeps your body in a rough synchronization and also changes your body temperature. For example: Our body temp. rises as morning approaches, peaks during the day, dips for a time in the early afternoon (such as when you take a nap), and then begins to drop again before you go to sleep. This also effects how when you get older you might have a tendency not to stay up as late and to wake up earlier in the morning.

In this chapter I agree with a lot of the different facts talking about drugs. I can say this because I've experienced a lot of the effects with having two brothers who used to use drugs. I mostly agree with drug tolerance and withdrawal symptoms. Drug tolerance is when you brain adapts to the chemistry offset by the drug which then causes your body to need larger and larger doses to get the same affect.
Withdrawal symptoms are what someone might face if they are a rabid user and then decide to/ are forced to quit using. Withdrawal is side effects due to the drug's absence and can be things such as: Physical pain, intense cravings, and a physical dependence for the missing drug.

Overall I thought this chapter had a lot of interesting information and a lot of stuff that really made me think about things more closely.