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Diabetes is a biological disease which can be objectively proven and diagnosed based on biological tests.

There are no objective biological diagnostic criteria for anything in the DSM.

"psychiatric diagnosis still relies exclusively on fallible subjective judgments rather than objective biological tests" -Allen Frances, The New Crisis of Confidence in Psychiatric Diagnosis

https://en.m.wikipedia.org/wiki/Allen_Frances




While it's not commonly used, there are biological markers researched these days. Vitamin levels (https://sci-hub.se/10.1192/bjpo.bp.116.003491) and TRY/KYN/IND ratios (https://sci-hub.se/10.1016/j.mehy.2013.11.018) - YMMV, but following that thread, supplementing those works great for me.


That's only because we have no way to measure it, not because it's not also a physical problem.


Also, it's really not the case that non-mental diseases have categorically clearer diagnostic criteria.


>That's only because we have no way to measure it, not because it's not also a physical problem

People say the same thing about God.

Measurability is a fundamental requirement of science for something to be tested or studied systematically.




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