Juanita does not feel like getting out of bed, has lost her appetite, and feels tired most of the day. Which of the following neurotransmitters likely is in short supply for Juanita?

a. Dopamine

b. Serotonin

c. Norepinephrine

d. Acetylcholine

e. Glutamate

Answer: Serotonin is likely in short supply

Explanation: serotonin is a neurotransmitter produced by nerve cells that is involved in depression, appetite, and is crucial in maintaining a sense of well-being, security, etc. It is called the happy chemical because of it involvement in making one happy. An imbalance influences the mood of an individual.