[Nervous system diseases in large-city population. II. Effect of occupational factors]

The patients of a local outpatient department in a half--million population town have been examined. The rate of organic angiogenic encephalopathies, vasomotor headaches and epilepsy has been three times greater in those performing light work than in the hard-working group. No dependency between the hard work and rate of ischias and lumbago has been found. Operations of productive machines, similarly as the working place microclimatic conditions do not pose a risk of nervous system diseases, except ischias and lumbago which occur more frequently in an occupational group working at low temperature and considerable humidity or at an open air. Likewise, the body position at work significantly affects the rate of ischias and lumbago. Our findings prove that hard work does not pose an additional risk of nervous system diseases. Another conclusion of those investigations is that advantageous microclimate and body position at the working place, possibly accompanied by corrective physical training, are significant in the prevention of ischias and lumbago.