Agree, but really the question is: why is it going up and why is it going up much faster in certain locations or among certain demographics? Or why are outcomes much better in certain locations/environments/demographics?
For example, it is more prevalent in urban environments, more prevalent among minorities in western countries, etc. it has better outcomes in “developing” countries.
Core human biology likely hasn’t changed much in recent history, so what had changed? Many of these factors that have changed, like drug use, are also very much related to social and economic factors. Of course these are all psychologically related and biologically related. But the point is we need to model the whole system, and focus on what has been changing if we want to get to root causes of change.
The abstract would seem to suggest methamphetamine is one correlation; you might also reasonably suggest toxoplasmosis and I have heard a naturopath suggest that it can be treated nutritionally(!) I'm certain there's other valid explanations
For example, it is more prevalent in urban environments, more prevalent among minorities in western countries, etc. it has better outcomes in “developing” countries.
Core human biology likely hasn’t changed much in recent history, so what had changed? Many of these factors that have changed, like drug use, are also very much related to social and economic factors. Of course these are all psychologically related and biologically related. But the point is we need to model the whole system, and focus on what has been changing if we want to get to root causes of change.