Throughout history, a majority of male adolescence have always been obsessed with experimenting with drugs and alcohol. Recently the number of males that engage in this activity has increased. This fact leads some to believe that the use of drugs and alcohol can inhibit psychological maturity and growth. A study to see whether this statement is true was conducted quite recently. Researchers already knew that the use marijuana can cause poor decision making and make some people have permanent dopamine level control problems. Researchers also knew that the level of maturity can depend on how adolescence deal with everyday problems. When anybody deals with their problems by avoiding them with drugs, the problem itself is never solved. The participants in the study were over 1100 male juvenile delinquents ranging in ages from 14 to 17. The study was done by interviewing the teens with a series of questions and situations. When a teen would answer a question with an inappropriate mindset, for example showing true feelings of wanting to give up on a project or wanting to get in fight when angry, the answers would curve the results to a negative maturity level. There was a based maturity level set in the form of a graph ranging from -.04 up to .08. In each graph the levels of maturity decreased with the use of both marijuana and alcohol. The steadiest incline of maturity decrease was the later onset of drug use in adolescence. The results of the study clearly showed that there was a direct correlation between the use the use of marijuana and alcohol and declination of male maturity. This is mainly because of drugs lasting effects on the brain with prolonged use. As stated in our text alcohol depresses the brains function to make correct decisions along with depressing motor skills and basic everyday physical functions. Marijuana on the other hand can cause a