The pattern of fear

We human beings react in the same way when afraid. Fear begins as an impulse in our brain which excites the sympathetic nerves to stimulate various regions (skin) and organs (heart, lungs, intestines) to produce the signs and symptoms of fear – the sweating hands, racing heart, quick breathing, dry mouth, etc. The sympathetic nerves do this by means of a substance called adrenalin, which is released at the nerve terminals in the organs concerned. Also, our two adrenal glands, themselves under sympathetic nervous stimulation, secrete additional adrenalin into our bloodstream to enhance the action of the sympathetic nerves.

When we are afraid we also feel a horrible sensation in the ‘pit of the stomach’. This is the most distressing component of fear. However, the complete picture of fear includes all the symptoms induced by adrenalin, the sweating hands, racing heart, heaving chest, etc., as well as the spasm of fear felt in our ‘middle’.

Normally we do not feel our body functioning, because parasympathetic nerves hold the sympathetic nerves in check. It is only when we are overwrought (angry, afraid, excited) that the sympathetic nerves dominate the parasympathetic and we are conscious of certain organs functioning. A healthy body without stress is a peaceful body.

Most of us associate kindness and understanding with the word sympathetic, and as the reactions of the sympathetic nerves can be anything but kind, some people find it difficult to reconcile themselves to the term ‘sympathetic nerves’. Therefore, to avoid any bewilderment, I shall henceforth refer to the sympathetic nerves as the adrenalin-releasing nerves – which, after all, is what they are.

So, briefly, we have a Voluntary Nervous System by means of which we move our body; an Involuntary Nervous System, consisting of adrenalin-releasing and parasympathetic divisions which control the functions of our internal organs, each part balancing the other. Normally we do not feel our involuntary nervous system working, but when we are overwrought the adrenalin-releasing nerves are especially stimulated and we may feel our heart beat quickly, our hands may sweat and our mouth may feel dry. In addition, our stomach may ‘churn’, we may feel breathless, giddy, and may have an urgent need to retire to the toilet.