Shingles is caused by the varicella-zoster virus â the same virus that causes chickenpox. Anyone who's had chickenpox may develop shingles. After you recover from chickenpox, the virus can enter your nervous system and lie dormant for years.
Hearing loss, also known as hearing impairment, is a partial or total inability to hear. A deaf person has little to no hearing. Hearing loss may occur in one or both ears. In children hearing problems can affect the ability to learn spoken language and in adults it can cause work related difficulties.
Simply put, presbycusis is sensorineural hearing loss that occurs as you age. This type of hearing loss usually happens gradually over the span of many years, affects both ears simultaneously (bilateral hearing loss), and occurs due to age-related changes within the inner ear and along the nerve pathways to the brain.