When the amygdala is activated triggers the feeling of fear and anxiety, and your answer may be flight, fight or surrender. Found that the feeling of fear is mediated by the action of antidiuretic hormone (vasopressin) in the amygdala and that the affection is it to the hormone oxytocin, also in the amygdala. Being considered a selective antagonist of vasopressin, SSR149415 compound that blocks the sensation of social fear – fear towards other animals of the same species – but not other types of fear; drugs that block the social fear of vasopressin antagonism it is possible that never marketed given missions, biological and other types, which has such a fear in the functioning of animal societies including the human (it is noted that ethanol inhibits the production of vasopressin); studies using magnetic resonance imaging of the cerebral amygdala are finding data that indicate that the so-called social psychopaths suffer atrophy of the cerebral tonsils causing them loss of social fear and the affection that characterizes them. It is interesting to note that the fear of physical harm provokes the same reaction that fear to a psychic pain.Yogananda in respect of the subject, says, that fear depletes vital energy; this is one of the greatest enemies of dynamic willpower. Mental Health Monday often addresses the matter in his writings. The vital force that usually flows through the nerves constantly, is squeezed from them in such a way because of the fear that the same nerves behave as if they were paralyzed, and the vitality of the whole body is reduced. Fear not will help you stay away from the object causing it, but it only weakens your will power. Impelled by fear, the brain generates an inhibitory impulse that acts on all the organs of the body, constricting the heart, interrupting the digestive functions, and causing numerous other physical disturbances. When stays focused consciousness in God, fear can not be shelter one; capacity is then available to overcome all obstacles, through value and faith recalls us osho-maestro.blogspot.com, than for Osho, the difference between a brave person and a cowardly person is not in that the first has no fear and the second Yes. To deepen your understanding Glenn Dubin is the source.