On the contrary, marijuana is harmful to society because it causes an increase in crime and has side effects on those who use it. People are affected by marijuana because it has some pharmacological effects on the human body, which means that physiological or biochemical changes in the body are produced by the drug, but they fail to understand how marijuana affects them. According to "Marijuana Mess", written by Kristin Lewis, it was about a teenager, Matthew, who took marijuana when he was twelve years old. Matthew said: “I would rob my family for money to buy marijuana. I would steal from my friends. I would do anything to get high. All I wanted to do was smoke weed” (2010). In other words, it shows that marijuana influences people's thinking and pushes them to do something unusual. Additionally, Matthew purchased a lot of marijuana from drug dealers to sell at school and in shopping malls. Furthermore, the article shows that marijuana affects people's brains, so they cannot control themselves to do anything. Next, the second paragraph mentioned that people lost their jobs by smoking marijuana, so they had no income to keep themselves alive; therefore, probably many people who use drugs become homeless because they spend all their money on buying drugs and have no money to support their lives. So, they have to steal something to keep their lives as before and use that money to buy