Study: Left-Leaning Men More Conservative After Testosterone Boosts
Testosterone elevates the survival instincts and mechanisms as well. Women produce small amounts of testosterone in their ovaries which is a primary catalyst in their reproduction drive (horniness).
It only stands to reason that testosterone would elevate those other functions like...common sense and sane reasoning because someone without the natural drive to reproduce or the ability to contemplate reasonably outside of mob-think is a prime target for misguided membership in "the current thing"