#9 is wrong. If counting money increases serotonin in the brain, it keeps you happy, along with having a "peaceful" mind. Also, the stimulation of the brain as a result of reward keeps your risk of having depression low. Buying these expensive items is not wise, but it helps the brain. I hate when humans who study Psychology don't have full focus on Neuroscience. Neuroscience is key to understanding why behaviors take place. (Studying Criminology is also important, since it obviously helps save lives).