Scientific research : The old man puts on weight not the lean person of the bad thing is more short-lived than the fat person

Scientific research : The old man puts on weight not the lean person of the bad thing is more short-lived than the fat person

Australian researchers find, regard body fat index as yardstick, so-called " L Overweight " R The mortality of the old man is relatively low, the elderly " L Put on weight " R It may not be the bad thing.
The index computing technology of body fat is the square of the weight divided by height, the weight is in units of kilogram, the height regards rice as the unit. Body fat 18.5 to 25 index normal, 25 to 30 overweight, 30 more than fat, 18.5 following one too light.
Since West Australia university researchers Followed up a case by regular visits to from 1996 9240 ages 70 is to the 75 -year-old old man. Among 10 years thereafter, 1369 men and 939 women passed away in succession, among them the majority died of cardiovascular vessel disease, secondly it is cancer and apoplexy .
Researchers find, consider many kinds of factors such as education degree, health status, habits and customs after analyzing the statistic, compared with the elderly with normal bodily form, low 13% of mortality of the elderly that overweight, underweight the mortality of the elderly is 76% high. Overweight person's mortality is equal to the normal one of bodily form .
Meanwhile, it will make male mortality increase by 28% to sit still for a long time, women's mortality increases by more than 50%.
Researchers have not proved " L Put on weight " R Why do the elderly have relatively low mortality.
" L We can only suppose, " R Geriatrics professor Leon who presides over this research Fleek says . " The fat becomes important as the reserve of nutrition and metabolism after being may be old. If fall ill, more can store the chance of more recovery. "
Fleek thinks, the body fat index is suitable for young people and middle-aged person, have as to the elderly " L Too strict" .
However, the expert of preventive medicine points out, it does not mean life quality is high that mortality is low. Overweight will still increase the probability of suffering from many kinds of diseases, such as diabetes, hypertension, apoplexy, coronary heart disease,etc.. (Jing Jing )
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