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I'm not aware of any "scientific evidence" that physicians use with patients. There's no way to measure depression objectively. An assertion that someone's "bra
by bjt2n3904 7y ago
I'm not aware of any "scientific evidence" that physicians use with patients. There's no way to measure depression objectively. An assertion that someone's "brain chemistry" is off holds about as much water as their chi being misaligned. It sounds sciencey, but if you can't measure it, you're making things up.
- nradov 7y agoThere are standardized depression screening questionnaires such as PHQ-9. Those are at least somewhat subjective, but they are widely used in large scale double-blind studies of mental health treatments. If a large fraction of subjects report a significant improvement in symptoms relative to the control group then we can have some scientific confidence in the treatment. http://www.cqaimh.org/pdf/tool_phq9.pdf http://www.cqaimh.org/pdf/tool_phq9.pdf Brain chemistry such as neurotransmitter levels is clearly a factor in some mental health conditions. There is no serious dispute of this fact. But it's also clearly not the only factor.