What is a common respiratory change that occurs with aging?

As individuals age, various physiological changes occur within the body, including in the respiratory system. One significant change is the decreased ability to clear secretions. This can happen due to several factors, such as weakened respiratory muscles and reduced ciliary function, which impairs the removal of mucus and other secretive debris from the airways. Consequently, this makes older adults more susceptible to respiratory infections and illnesses since trapped secretions can provide a breeding ground for bacteria.

The other options highlight attributes that do not typically improve or become more pronounced with aging. For instance, lung capacity generally tends to decline with age, and respiratory muscles may weaken. As a result, the efficiency of gas exchange can also diminish, leading to potential respiratory challenges for older adults. Understanding these changes is crucial for providing appropriate care and support for the elderly population.