Increased instability of both NREM and REM sleep is a crucial neurophysiological mechanism in insomnia. Depression was considered important in stress relative to sleep quality. found that stress was associated with several individual factors, such as age, employment status, type of work, personality, level of education, and socioeconomic status. About 50% of older adults living in private homes and 70% living in nursing homes experiencing impaired in sleep quality. The US National Heart, Lung, and Blood Institute state that the decrease in sleep quality is caused by a medical condition regarding an illness, stress, anxiety, and other factors. In a variety of conditions such as cardiovascular disease, type 2 diabetes, depression, some cancers, and arthritis, physical activity and exercise are advocated as effective interventions to treat sleeping disorder.
Physiologically, sleep is an internally and externally controlled process structured by the interaction of circadian clock and homeostatic mechanisms. Sleep deprivation was found to interfere with cognitive performance, mood, glucose metabolism, regulation of appetite, and immune function. This damage is a major risk factor for various diseases, including cancer, diabetes, cardiovascular disorders, and neurodegenerative diseases. The ageing process is characterised by the loss of progressive physiological integrity, which causes impaired function and increases susceptibility to death. In Indonesia, based on national law, the elderly are aged 60 years and over. Īccording to WHO, the elderly are individuals aged 60 years and over comprising: (1) Elderly is 60-74 years old (2) Old Age is 75-90 years old, and (3) very old age (very old) is over 90 years old. According to the World Health Organization (WHO), the elderly or someone who has reached the age of 60 and above. The group that categorised as the elderly will have a process called the ageing process. Elderly is an age group in humans who have to enter the final stage of a life phase.
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