The main concept that I am going to remember after taking Psych 1001 is that there is more to drug addiction than just deciding whether or not to take a drug. I have learned how drugs alter neurotransmitters that are released in the brain and that it is because of that reason that drug addiction is such a hard thing to overcome. I am very happy that I now know this information because after learning about it in lecture, and about ways that can be used to successfully end an addiction, I spent time learning more about drug addiction and learned about different ways that it can be fought. Since the brain gets habituated to the changes brought on by the drugs, more and more of the drug is eventually needed in order for the user to experience the same high that he or she once got. This is another reason why drug addiction is so hard to treat, sometimes a user cannot just quit, they need to slowly decrease the amount of the drug that they use until they are clean or receive a healthier substitute drug. Substituting drugs makes it so that the user is not at such a high risk for a drug related death, which is what occurs to heroin addicts when they switch to methadone.
Here the trailer to the movie Requiem for a Dream, which is a movie about heroin and cocaine addicts in New York.