Characteristics Of Rainforest.
Introduction Background to the Study Ageing is not a disease, and getting old and getting sick are two different things. Ageing is a dignified honour for those who are lucky enough.
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In the early 19th century, even in the richest countries, there were fewer older people, but today, older adults form the fastest growing population group on earth Characteristics Of Rainforest, Each month, one million people worldwide are reaching the age of 60 years Nakejima, Presently, the actual age used in determining an older adult differs among researchers. Others held that an older adult is one aged 65 years and over Nutrition Insight, In Australia, the country with the largest number of older people in the western world, old age commences at 60 years and old-old is 75years and over National Institute on Ageing, Given the above facts, an older adult in the present study is considered as one aged 60 years and above.
No two older adults are comparable in functional ability, strength and health. They differ in the way they age, and this lends credence to the complexity of ageing process. Ageing is operationally defined as a period of time one has lived, usually counted by years, and characterized by decline in functional ability, whether in physical, social or mental dimension.
It has a connotation of deterioration of vitality. Biologically, ageing is accompanied by harmful physical changes commonly Characteristics Of Rainforest as senescence. Austaad defined senescence as the progressive deterioration of virtually every bodily function over time.
The biology of senescence emphasizes that the ageing process is complex and dynamic. Before a cell dies, it reproduces itself Rainforext fifty times. With each successive reproduction, the cell goes through some alteration, which basically causes cell deterioration. As cells deteriorate, there is corresponding decline in physiological function, particularly in organs composed entirely of post-mitotic cells, with no Characteristics Of Rainforest for repair or renewal.
Typical example is the nerve cells. The rate of cell loss or deterioration increases with age, hence ageing is caused by degeneration of cells.
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Medina explained that from head to toe, from proteins to DNA, and from birth to death, untold battalions of processes unfold themselves to create the ageing of a trillion- celled human. However, ageing is an Characteristics Of Rainforest process accompanied by variety of physiological changes that particularly affect the mouth, gastrointestinal tract and sense organs. According to Mattesonthe mouths of older adults are characterized by gum disease, loss of teeth, and reduced secretion of saliva. Their gastrointestinal tracts have insufficient secretion of hydrochloric acid learn more here digestive enzymes. Perry found that reduced secretion of digestive enzymes in the mouth, stomach and pancreas led to poor digestion and poor absorption of proteins and minerals including iron, calcium and zinc. In addition, insufficient stomach acid allows the overgrowth of bacteria in the small intestine and reduces the absorption of vitamin B This implies that one can feed well but still have poor nutritional status if the nutrients from the food eaten are not made available to the cells, and if utilization of nutrients by Characteristics Of Rainforest body is impaired either by drug or functional abnormality.
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The process is quite complex and individualized. Nutritional status assessment can be done using different methods such as Body Mass Characteristics Of Rainforest BMIclinical examination, biochemical examination, anthropometry, questionnaires and checklists. The anthropometric method which involves the measurement of mid-upper arm circumference MUAC to determine the nutritional status of an individual is an easy — to — use link because it requires only a tape measure.
The MUAC is a more appropriate tool for determining the nutritional status of older adults than the BMI because of changes in their body composition and kyphosis. Kyphosis is a postural defect characterized by curvature of spine which makes it difficult for one to stand erect. Among the older adults, nutritional status assessment is required to identify the population segment at risk for nutrition-related health consequences and to recommend interventions. The nutritional status assessment entails the measurement of certain parameters of the human body to determine the nutritional status of an individual. The present study was concerned only with the measurement Characteristics Of Rainforest mid-upper arm circumference MUAC of the older adults using a tape to determine their nutritional status.
As population age, Characteristics Of Rainforest is need to ensure that more people not just reach old age but do so in good health, joy and assured capability of contributing to society intellectually, spiritually and physically Okafor, To achieve this, proper nutrition in old age is vital. There are vital reasons for nutritional concern in old age. Furthermore, it is obvious that for the cells of the body to function efficiently the essential nutritional substances carbohydrates, proteins, fats, vitamins, mineral salts, water and roughage must be available to the body in their correct proportion.
The macro-nutrients carbohydrates, proteins and fats are usually broken down by process of digestion into simpler forms glucose — for Characteristics Of Rainforest production; amino-acid, for building and repairing of tissues; and fatty acid and glycerol for providing heat and energy more info used up for metabolic processes.]
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