Idiots. Injecting a molecule into someone to mask the appearance of depression leaves the root cause of the depression untouched.
This is because they think we are nothing but a bunch of chemicals and electrical impulses.
This is actually very impressive. A biochemical corollary to increased affect that is not part of the SSRI metabolic sequence.
They are not “injecting a molecule into someone.” They were assaying the brain tissues of dead people who had been depressed and comparing them with the tissues of dead people who were not depressed.
They also did clinical trials, giving antidepressant medication to depressed patients and comparing the levels before and after treatment. When the patients had an improved mood and functioning, the researchers did correlate this with an elevated level of this molecule, which had probably been raised by the introduction of the medication.
“They” do not necessarily think “we are nothing but a bunch of chemicals and electrical impulses,” as you say, but they do acknowledge that some psychiatric problems may be the result of biochemical malfunctioning. You will grant that the biochemistry of your stomach or liver or kidneys can malfunction, causing disease, so why is it hard to believe that the most sensitive and complex organ in your body, the brain, can have its biochemistry go awry?