Answer: Mostly True - For the most part, all five senses decline in old age for individuals living in the United States. Some normal age declines are viewed cross-culturally and clearly documented (e.g. the changes that occur in the visual system with age). There are numerous changes that occur with vision that are highly correlated with age. However, the dramatic declines that are recorded to occur in the auditory system may be due more to the cumulative effects of noise than to age. Most individuals living in low-noise cultures (e.g. nomadic cultures, simple agrarian cultures) do not exhibit a loss of hearing with age. Use your iPod carefully with an eye towards how much you want to hear in old age.