Question

Describe any three physiological changes due to ageing.

Answer 1

Three physiological changes due to ageing are:

1. Muscle Size and Strength: Muscle size decreases with age. This drop is thought to be due to less protein and fewer and smaller muscle fibres. People's muscle strength decreases as they age, which can be a result of genetic, dietary, environmental, and lifestyle factors. When muscle strength goes down, it becomes harder to move around and do everyday things.
2. The respiratory system: As people age, their ability to absorb and exchange oxygen decreases. As we age, the tissues of the lungs and airways lose their elasticity. As people age, their residual volume rises as their overall lung capacity falls.
3. The cardiovascular system: Many studies have revealed that their overall heart size decreases as people age. The left ventricular chamber size may diminish significantly due to decreased exercise and physical demands associated with advancing age.