Autonomous Nervous System
Many psychic states have a negative effect on the entire body. They distort the functioning of the autonomous nervous system triggering a chain of neurophysiological reactions, which could lead to illness generating processes.
Neuroassociations
The connections between the nerve cells in our central nervous system form something like a neurological map, which is independent from our well functioning structure - the basis of our decision-making system.

Our decisions are permanently stored in the central nervous system. The organization of these connections gives rise to the learning process.
Unfortunately, this information can be interpreted and structured in a way which can give a rise to unconscious reflexes resulting in fear, depression, various illnesses, disorders, allergies and mental barriers manifesting themselves as fatigue, indecisiveness, hesitancy, luck of motivation and unhappiness.