The brain is such a medium that controls the whole body of a human being. It connects with other parts of the body and the whole nervous system by transmitting messages to the whole body and that process is accomplished due to a number of chemicals used by the brain. These are called neurotransmitters, which were either received or released by the nerve cells present in the brain and thus could also be called neurons. These neurons continuously communicate with each other in order to exchange neurotransmitters. This system of communication ensures the proper functioning of the brain.
The space connecting these neurons is called the synapse. The neuron sending the neurotransmitter message to the next neuron via synapse and the receiver neuron receives that message through a receptor that is embedded on the surface. Receptors are the molecules that act as the entrance or lock and are responsible for the chemical channeling of neurotransmitters. They send and fit the neurotransmitters by the sender to the exact receiver channel and then this receptor opened or activated like a key opening a door.
Which Neurotransmitter Is Associated With Depression?
As neurotransmitters act as chemical messengers of the brain and brain’s nerve cells using these neurotransmitters connect with each other. These messages play their role in regulating the mood as well. Although there are a lot of neurotransmitters researched and proved by a lot of researches that are directly or indirectly linked with mental disorders. But the ones that especially play their role or linked with depression are:
Dopamine is very essential to influence movement and motivation and a person’s perspective of recognizing reality. However, issues with dopamine might lead to some psychosis which can be in the form of some hallucinations or nightmares. It also has a link with the reward system of the brain.
It is considered as one of the most influenced neurotransmitters linked with depression as it is involved in regulating and normalizing appetite, sleep, mood, and certain body pains or aches. A lot of researches proved the fact that people with depression mostly have low serotonin levels. Low serotonin levels trigger severe depressive episodes and even precede higher risks for suicide.
It can tighten the blood vessels which raises the blood pressure of a person. Norepinephrine might also initiate anxiety and trigger some kinds of depression. However, it could be involved in motivation determining the rewards a person has.
It’s just a small excitatory molecule that plays an important role in mental conditions like Schizophrenia and Bipolar Disorder. Lithium Carbonate is usually used to stabilize glutamate levels and act as a mood stabilizer in depressive people.
It is linked with memory enhancements like recalling, understanding and learning something. All the activities of the brain linked with Acetylcholine are involved as well as influenced greatly by the depression.
GABA (Gamma-Aminobutyric Acid) as the name suggests is an amino acid that is considered more of an inhibitory neurotransmitter. It is also proved to act in alleviating anxiety.