According to recent research, children as young as 4 to 5 understand the irreversibility of death and that it involves a cessation of mental and physical functioning.
Physical functioning is the capacity to carry out both fundamental and instrumental activities of everyday living, and the capability of older adults to live within the network depends to a large quantity on their stage of physical function.
To measure physical functioning, clinicians and researchers have traditionally trusted instruments focusing on the capacity of the individual to accomplish particular useful tasks (e.g., the Activities of Daily Living [ADL] or the Instrumental ADL scales).
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