Neuroscience surprisingly teaches us that not only is psychotherapy purely biological, but it is the only real biological treatment. It addresses the brain in the way it actually develops, matures, and operates.
It follows the principles of evolutionary adaptation. It is consonant with genetics. And it specifically heals the problematic adaptations of the brain in precisely the ways that they evolved in the first place.
Psychotherapy deactivates maladaptive brain mappings and fosters new and constructive pathways.