Answer:
norepinephrine levels and low serotonin levels
Explanation:
Dr. Lynne Weixelanswered
Clinical Psychology 36 years experience
Some depression is: Serotonin plays an important role in feelings of well-being vs depression. Low levels can trigger depression and other disorders. Other neurotransmitters involved in depression include acetylcholine & catecholamines (dopamine, norepinephrine, & epinephrine). As well as corticotropin-releasing factor (crf), a stress hormone may be involved. But not all depression is chemically caused.
https://www.healthtap.com/questions/964237-is-depression-associated-with-low-levels-of-neurotransmitter-which-one/
