10.42 Ageing

10.42.2 Describe the effects of the normal process of human ageing on: 

(a) the sensitivity and acuity of the sensory system

The normal process of human ageing can lead to a decline in the sensitivity and acuity of the sensory system, particularly in:

• vision; and

• hearing.

This can result in difficulty:

• perceiving fine details;

• distinguishing between similar stimuli; and

• detecting low-level sensory information.

(b) muscular strength

Ageing can also lead to a decline in muscular strength, particularly in the muscles used for activities such as:

• walking;

• lifting; and

• balance.

This can result in a decreased ability to perform physical tasks and an increased risk of falls and injuries.

(c) resilience and reaction times

Resilience and reaction times can decline with age.

This can make it more difficult to:

• recover from stress or illness; and

• respond quickly to changes in the environment.

This can result in an increased risk of accidents and injuries.

(d) sleep/wakefulness patterns

Ageing can affect sleep/wakefulness patterns, with many older adults experiencing changes in:

• sleep quality;

• sleep duration; and

• sleep timing.