The brain, like the body, needs rest to function, and that comes with silence.
Research from Johns Hopkins University has found that elderly persons that engage in frequent physical activity have a reduced incidence of hearing loss. The researchers tested 706 people of age 70 or older. The subjects responded to a questionnaire about their physical activity levels over the previous 30 days and wore accelerometers to measure their level of day-to-day physical activity.
Based on their findings, the researchers believe that noise pollution will grow faster than the population, doubling every 30 years.