<span>Depression is linked to an imbalanced level in serotonin. Serotonin is a neurotransmitter that is produced in the brain. These neurotransmitters helps the brain to send and receive messages from one part of the body to another. Serotonin affects nearly all the cells within the brain. As a result human behavior, mood, sleep, and even appetite can be greatly influenced. Aggressive behavior although can result from the same imbalanced levels of serotonin. Researches believe that the lack of receptors, or the inability for serotonin to reach these receptors, may also impact our ability to control anger and aggression.</span>
It depends on the time period. In the 1600s when they just settled in Jamestown, they most likely didn’t know that they were there (at least how many were there) but later, of course they started driving them off so they could build more of America. I’m actually studying this in school right now so I hope I am correct. Don’t be sure this is right though...
