[david_l_lin]

Super interesting study! Other studies also associated the oral microbiome with cognitive health, like depression and Alzheimer's, but this is an interesting finding.

>H2S-producing bacteria exhibited disease-stage-specific enrichment and could be potential diagnostic biomarkers

This would suggest that people with bad breath may have higher risk of schizophrenia? Or maybe the reverse? I also wonder if this was controlled for oral hygiene routines and oral health in general? I would assume people with uncontrolled schizophrenia have worse oral health, which may be a factor?

[BizarroLand]

Makes me wonder what parts of your mental and emotional health are mediated by your own breath?

Since the brain attenuates everything outside of the status quo what portion of what it is spending energy attenuating is your own malodorous exhalations?

How does the static labor of keeping your autonomous body on cruise control affect your mental and emotional health? If we could identify and control some of those things, how would their presence or absence alter your mood and worldview?

[grawprog]

This is anecdotal but, I used to know somebody with schizophrenia. This person regularly took care of their teeth but had pretty bad dental problems. Lots of cavities and gum disease and such. Apparently they were even told by a dentist at one point they just had 'bad bacteria' in their mouth and would likely have tooth problems for the rest of their life.

[aaaaaaaaata]

Ways to fix "bad bacteria" are plentiful.

This is a story of medical and personal negligence.