Antidepressants And The Chemical Imbalance Of The Brain Essay

1195 Words May 20th, 2015 5 Pages
Many people, at some point in their lives, may feel depressed, lonely, or just sad. “Approximately 25 million Americans will have an episode of depression this year alone” (Duckworth). Some people can not get through the sadness alone; they need help from a medication. The reason these antidepressants are needed is due to a chemical imbalance of the brain. Antidepressants can alter the chemical balance of the brain and have many negative side effects when taking one.
The main reason that antidepressants are used is because of the chemicals in the brain (Hauser). These chemicals are called serotonin, norepinephrine, and dopamine (Gronley). Serotonin is a combination of the protein tryptophan and a chemical reactor tryptophan hydroxylase. Serotonin can be produced in the brain and in the intestines. It is spread throughout the body and contributes to body movements and psychological functions. The main task of this chemical is to deliver signals to nerve cells or neurons (“What Is”). Norepinephrine is a neurotransmitter as well, but it also has the responsibility to work as a hormone. It is a stress hormone which means that it increases the amount of blood flow and increases heartbeat the more stressed one becomes. It is a messenger for the central nervous system. This chemical comes into action when a stressful event happens causing the chemical to be released (“Norepinephrine”). Dopamine is produced in the substantia nigra, which is a part in the middle of the brain. This…

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