Presbycusis is the loss of hearing that occurs as we age. Hearing loss is a common disorder associated with aging. About 30-35 percent of adults between the ages of 65 and 75 years have a hearing loss. An estimated that 40-50 percent of people 75 and older have a...

Hear and understand; one word means to perceive sound the other to comprehend the meaning.  It’s possible to hear everything someone says but at the same time not understand what was said.  Imagine listening to someone speak in a foreign language you would be able to...