Its action is described as being complementary to that of the sympathetic nervous system, which is responsible for stimulating activities associated with the fight-or-flight response. Nerve fibres of the parasympathetic nervous system arise from the central nervous system. Specific nerves include several cranial nerves, specifically the oculomotor nerve, facial nerve, glossopharyngeal nerve, and vagus nerve. Three spinal nerves in the sacrum (S2-4) also act as parasympathetic nerves.
A healthy BMI is considered to be between 18.5 and 24.9. Based on these BMI tables, the National Heart, Lung and Blood Institute suggests that a healthy weight range for women who are 5 feet 4 inches tall is 110 to 140 pounds.
BMI 25-30 is moderate overweight and BMI above 30 is severe overweight (obese). Your Ideal Weight: A BMI of 22 (right in the middle of the normal healthy BMI range) would be Your Ideal Weight. Example: How much should You weigh. A 5 5 person weighs 143 lbs and falls into the healthy weight sector and is doing fine. The healthy weight sector for a 5 5 Person is 113-150 lbs. The Ideal weight would be around the middle with a BMI of 22 = 130 lbs.