We have known for a long time that noise is harmful to one's hearing, health and the quality of life. Hearing is apt to be impaired in those exposed to constant loud noises.
Noise interferes seriously with the efficiency of the worker.
It lessens attention and makes concentration upon any task difficult. In the attempt to overcome the effect of noise, great strain is put upon the nervous system, leading to neurasthenic and psychasthenic states, and necessitating frequent recuperation in the country to maintain mental efficiency and alertness. Noise interferes seriously with sleep, even though in some cases it appears that the system is able to adjust itself so that wakefulness does not result. It is well established that, in addition to these other evil effects, the normal development of infants and young children is seriously interfered with by constant loud noises. Noise must be considered a hazard to the health of people everywhere.