Infants especially newborns are susceptible to hearing damage from loud noises because their skulls are thinner. Exposure to excessive noise during pregnancy may result in high-frequency hearing loss in newborns, and may be associated with prematurity and intrauterine growth retardation. Loud noises can cause hearing loss by damaging parts of the inner ear; the area responsible for hearing.
Safe Levels: Safe levels can vary according to the duration of the exposure and the loudness level. Noises less than 80 decibels should not cause hearing damage. This is the equivalent to noise in a restaurant or in city street traffic. A normal conversation is about 60 decibels.