Medication (and mother substances) can affect your ability to have dreams, and what they are about too. Depends a lot on the type of medication and your specific case (not everyone reacts the same to each medication), so YMMV. I’ve been in treatment for depression for over 20 years with different medications and therapy styles and definitely I saw significant differences.

Maybe not evolutionary advantage, but vestigial origin. Maybe a feature that is in the middle of development / disappearing.

Interesting. Maybe they just don’t want to be involved in another dictatorship just yet?

This is very interesting, at least for me as a Latin American but not from Brazil. I wonder whether the Army and Air Force want to distance themselves from politics in general, or if they have an issue with Bolsorano (or maybe the Navy)?