Our Autonomic System has two subsystems called the Sympathetic Nervous System (SNS), and the Parasympathetic Nervous System (PNS). You transition between these two systems based on the body’s current goals and state of health.
The SNS is engaged when we feel threatened and might need to fight or run. The PNS is engaged when we are digesting, repairing, or creating life.
If you are acutely or chronically stressed, whether it is from an external threat, a mental, emotional, or physiologically state of being, your SNS will be dominant, and therefore your PNS will be passive. So if you are trying to improve your health, you would want your PNS to be dominant. But to have PNS dominance, you must address your sources of stress. This is one of the major reasons why healing a chronic infection is often not enough to repair the body. Working through mental and emotional stress is also necessary. If you are having difficulty being successful with improving your health, and you feel the blockage is behavior, I recommend working with a Functional Health Coach.
There are many simple habits that help promote PNS dominance. Being a qigong and taiji practitioner, one of my favorites methods is taking deep, intentional breaths.