Polyvagal Theory, developed by Stephen Porges, provides a neuroscience framework that explains many aspects of the fundamentals of sex in terms of the nervous system's safety-detection mechanisms.
The Three States of Polyvagal Theory and The Fundamentals of Sex
Ventral vagal (safe and social): Optimal state for connection, learning, and the fundamentals of sex management
Sympathetic mobilization (fight or flight): Anxiety-type the fundamentals of sex responses
Dorsal vagal shutdown (freeze/collapse): Depression and dissociation-type the fundamentals of sex
Neuroception and The Fundamentals of Sex
Neuroception — the body's unconscious safety-detection — can be dysregulated in the fundamentals of sex, causing false alarms (sensing danger when safe) that drive the fundamentals of sex responses.
Polyvagal-Informed The Fundamentals of Sex Treatment
Therapy that acknowledges the body's state — helping clients move into ventral vagal 'safe and social' — transforms the fundamentals of sex management.
Safe relationships, co-regulation, and body-based practices are particularly emphasized.