What happens in brain that leads to depression?

     What happens in brain that leads to depression?

Depression can also be defined as a neurological disorder that may cause a lot of emotional anguish.

Still the cause of depression is unknown but a number of things are often associated towards its development. It can also be called as bio psychological illness, and as the term suggest all three pathways are important-the biological, the psychological, and the social.

The initial theories of the biology of depression centered on the monoamine neurotransmitters— norepinephrine, serotonin, and to a lesser extent, dopamine — because these neurotransmitters were known to be involved

in the regulation of sleep, energy, appetite, and pleasure and because the first antidepressant medications were found to rapidly increase concentrations of these neurochemicals in the brain.

Much more has been learned concerning the complexities of brain operate within the past forty close to years, and many other neurochemicals have been implicated in depression.

You've probably heard the term "neurotransmitter" before, but what are these molecules and how do they work?

Neurotransmitters area unit chemical messengers within the brain that area unit the means that by that nerve cells communicate with one another.

Illustration of Neurotransmitters in Action
The old adage that a picture is worth a thousand words was never more true than when talking about how nerve cells in our brain communicate with each other.

The illustration higher than depicts the junction between 2 nerve cells.

Packets of neurotransmitter molecules are released from the end of the presynaptic cell (the axon) into the space between the two nerve cells (the synapse).

These molecules could then be preoccupied by receptors (such as monoamine neurotransmitter receptors) of the postsynaptic vegetative cell (the dendrite) and therefore pass on their chemical message.

Excess molecules area unit taken make a copy by the presynaptic cell and reprocessed.

Neurotransmitters and Mood Regulation

There area unit 3 neurotransmitters, acknowledged with chemicals as monoamines, that area unit thought to play a task in mood regulation:

• Serotonin - Serotonin has been coined the "feel good" neurotransmitter.
• Norepinephrine
• Dopamine
These are just a few of the neurotransmitters that function as messengers in the brain. Others include glutamate, GABA, and acetylcholine.