"The link between low levels of serotonin and depressive illness is unclear, as some depressed people have too much serotonin."
"a depressed brain is not necessarily underproducing something."
scientists now reject the theory that depression is caused by low levels of neurotransmitters such as serotonin.
"I guarantee you when war becomes that profitable, you are going to see more of it." Similarly, as mental illness has become extremely profitable, we are seeing more of it.
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