Possible Factors for Depression/Mood Issues
Depression and mood issues can be caused by several things including stress, hormonal imbalances, and neurotransmitter imbalances. Serotonin, Dopamine, norepinephrine, epinephrine and GABA are neurotransmitters thought to be involved in the development of depressive symptoms and mood disorders. Normal serotonin activity appears to be important in maintaining feelings of well-being, and deficiencies in serotonin may be related to the development of anxiety disorders. Norepinephrine is a close cousin to epinephrine, also known as adrenaline. The "fight or flight" reaction to stress is associated with elevated adrenaline and cortisol levels, and the stress-related sense of being in a state of fear. Symptoms associated with low thyroid often mimic depression; including fatigue, irritability and sudden weight loss. Low vitamin D levels correlate highly with depressive symptoms.
Ways to measure these neurotransmitters