Mental processing goes off line or is diminished with chronic stress or PTSD.

• [ ] PRSD and Chronic stress generate an alertness to threat and a feeling of lack of safety in which mental processing falls second to adaptive survival responses (Williamson, Porges, Lamb, & Porges, 2015). Williamson, J. B., Porges, E. C., Lamb, D. G., & Porges, S. W. (2015). Maladaptive autonomic regulation in PTSD acceler- ates physiological aging. Frontiers in Psychology, 5, 1–12. https://doi.org/10.3389/fpsyg.2014.01571