STOP THE MADNESS OF SEROTONIN
The causes of mental symptoms can be toxicity, poor nutrition, emotional stress or physical trauma.
Serotonin is not "the cause" of anything. It is just one of many different neurotransmitters whose function can only be understood as part of the whole. It has a role to play in mental symptoms, but it is not "the cause" of anything.
Depression, anxiety, bipolar mental symptoms or others can only be understood in holistic evaluation, without using reductionist theory.
Saul Marcus, ND
Video credits to Saul Marcus, ND YouTube channel