People who suffer from clinical depression normally have an imbalance in their serotonin neurotransmitters. There are at least 22 different types of serotonin neurotransmitters produced within our brain. And each of those 22 serotonins have subtypes. People are born with genetically predetermined amounts of each type of serotonin neurotransmitters. When individuals have deficiencies in one or more of their serotonin neurotransmitters, they often suffer from depression.
It is common for individuals with low amounts of serotonin neurotransmitters to become alcoholics. This is because of the unique relationships that exist between alcohol and the brain and the neurotransmitters in the brain. Alcohol raises serotonin neurotransmitters, along with others, causing people to feel happy. However there is a major down-side to that, namely – once the alcohol wears off, serotonin levels drop farther below their genetically determined levels, leaving immense feelings of craving.
You can see Dr. Von Stieff’s video about the basic science of the brain and addiction, where he explains serotonin neurotransmitters’ role in addiction and alcoholism by clicking here. You can learn everything you ever wanted to know about the neurotransmitters in the brain and their relationship with depression and alcoholism, as well as other forms of substance abuse in Dr. Von Stieff’s book, Brain in Balance: Understanding the Genetics and Neurochemistry behind Addiction and Sobriety.