How does one take care of their autonomic nervous sytem. How about taking care of the parasympathetic sympathetic and central nervous system?

Intriguing question. Control of the autonomic nervous system (sympathetic and parasympathetic) probably best attained by studying biofeedback, autogenic training, and meditation. A web-based program at heartmath.Com is recommended. Otherwise, an ascetic isolated decade-long yogi sojurn in an himalayan cave can be undertaken. The idea is to train the unconscious mind to be obedient. Avoid anger and fear. Seek love.