People who are deficient in the neurotransmitters serotonin and neuropeptide y (NPY) are most susceptible to depression after experiencing extremely stressful situations.
A monoamine neurotransmitter is serotonin, also known as 5-hydroxytryptamine. It has a complicated and varied biological function that affects several physiological processes, including vomiting and vasoconstriction, as well as mood, cognition, reward, learning, and memory.
One of the most potent orexigenic peptides in the brain is called neuropeptide Y (NPY). It promotes eating with a preference for carbohydrate consumption. By increasing meal size, it reduces eating latency, boosts appetite, and delays fullness.
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