Autonomic Nervous System
The autonomic nervous system (ANS) is working in an involuntary (autonomous) manner in our bodies, providing adaptation to changes in the external and internal environment; heart, lungs, veins, intestines, reproductive organs, such as the vital system controlling. The autonomic nervous system consists mainly of two parts:
1- The sympathetic nervous system that causes “fight or flight” mode on in the presence of situations such as danger, attack, panic, etc. ,
2- The Parasympathetic nervous system which is called “rest and digest” which calms the body, provides growth and development, reduces stress, has more internal characteristics.
Stress factors lead to cause increased activity in the sympathetic nervous system. In this case, the sympathetic system creates a common response in the body and can significantly suppress the parasympathetic system. This disruption of the body’s coherence also brings with it long-term discomforts associated with autonomic dysfunction (a disorder of ANS activity).