As people age, which system is affected by shallow breathing and a weaker chest muscle tone?

The respiratory system is directly impacted by shallow breathing and weaker chest muscle tone in aging individuals. As people age, changes in the musculature of the chest can lead to a reduced ability to take deep breaths, which diminishes lung capacity and efficiency. This can result in decreased oxygen intake and impaired gas exchange in the lungs.

Aging also affects the elasticity of lung tissue, further contributing to shallow breathing. This can make it more difficult for older adults to perform physical activities and increase their risk of respiratory complications. Therefore, the effects of aging on respiratory mechanics and function are significant, leading to the conclusion that the respiratory system is the system primarily affected by these changes.