Importance of rest and relaxation

A better understanding of the importance of rest and relaxation has been made possible by advances in neurophysiology providing new in- sights into what happens in the central nervous system. Investigators have been able to establish-by actually picking out the structures in animals and stimulating them with electric currents-that there are structures which have a damping or inhibitory effect and are in fatigue, and there are other structures which make up a system. 

If we sum up the vast amount of Neuro-physiological research, we fit this picture: An individual's mood-his ability to perform-at the given time depends on the degree of activity of the two systems. Inhibitory system dominates, the individual is in a state of fatigue; in the activating system dominates; he is ready to step up performance. This concept of fatigue helps to explain many symptoms otherwise difficult to understand.

All of us know, for example, that a feeling of tiredness can often disappear immediately if something unexpected happens or if a piece of intelligence or train of thought produces an emotional change. In such cases, the activating system is being stimulated. But if the surroundings are monotonous, if we are bored by what we are doing, the pitch of the activating system is lowered and the inhibitory system is in the ascendancy. 

And it is this that explains the fatigue that ran occurs in monotonous situations even when there is no stress. Monotony, by definition, is a wearisome sameness, a lack of change in the variety. And whatever the work we do, it can be considered monotonous work if it goes on without pause or change of pace.

We all are aware of the need for a good night's sleep, but too few of us recognize the need for rest and relaxation during the day. Many of us businessmen, professional people, and others-who not only work hard but are under heavy stress could live more comfortably without sacrificing efficiency-indeed, with increased efficiency-and probably live longer if we managed to take breaks during the day and take them without guilty consciences.