You have a balanced Autonomic Nervous System. This will be reflected in your Metabolic Dietary Type and nutrient recommendations.
The autonomic nervous system controls most of the involuntary activities of your body. It regulates your metabolism and keeps you alive without conscious thought. It has two opposing branches; the parasympathetic and sympathetic. The parasympathetic branch (“rest and digest”) causes pupil contraction, lowering of heart rate, lowering of blood sugar, increasing of digestive secretions, and relaxing of the bladder among other things. The sympathetic branch (“fight or flight”) does the opposite. Some nutrients strengthen one branch over the other. When an imbalance exists, these nutrients can make the imbalance better or worse. Different people have different dietary requirements.
The best source of information about Metabolic Typing is The Metabolic Typing Diet by William L. Wolcott and Trish Fahey, published in 2000.
Signs, symptoms & indicators of Autonomic Nervous System Balance (Balanced)

High systolic blood pressure

High diastolic blood pressure

Thin musculature
Counter Indicators

Thick musculature

(Very) frequent stools or normal stool frequency
Counter Indicators

(Tendency to/very) infrequent stools

Arrhythmia

Weak appetite

Infrequent eating
Counter Indicators

Frequent eating

Strong appetite

(Confirmed) delayed gastric emptying

(History of) heartburn
Counter Indicators

Absence of delayed gastric emptying

Cold sores

History of infections

Low stamina

Patient/calm disposition

Being anxious/nervous

Being highly motivated

A hard-driving personality

High spontaneity

Being easily excitable

Being an antisocial person
Counter Indicators

Being a sociable person

Being not easily excited

Low spontaneity

Being unmotivated

Rashes

Dry skin
Counter Indicators

Oily/moist skin

Unsound sleep

(Frequent) difficulty falling asleep
Conditions that suggest Autonomic Nervous System Balance (Balanced)


Risk factors for Autonomic Nervous System Balance (Balanced)

Angular face
Counter Indicators

Round face

History of adult allergies

History of hypoglycemia

History of adolescent acne
Key
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Glossary
Nervous System
A system in the body that is comprised of the brain, spinal cord, nerves, ganglia and parts of the receptor organs that receive and interpret stimuli and transmit impulses to effector organs.
Metabolism
The chemical processes of living cells in which energy is produced in order to replace and repair tissues and maintain a healthy body. Responsible for the production of energy, biosynthesis of important substances, and degradation of various compounds.
Parasympathetic
Usually Parasympathetic nervous system: Portion of the autonomic nervous system that is generally associated with increasing digestion and intestinal muscle activity; decreasing blood circulation and respiration.