[B] Another reason for deafness is repeated exposure to loud noises, such as loud music, machinery, lawn mowers etc.A torn eardrum cannot correctly send vibrations to the inner ear the way an intact eardrum would.Some medications can either reversibly or irreversibly damage hearing.Some forms of hearing loss or deafness are related to brain injuries.It starts in early adulthood and becomes more noticeable after the age of 50.