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Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

author:Zhang Xuejun, a cardiologist

#秋日生活打卡季#

"Lao Li, come to the park to exercise again, sweat so much, don't run, come and talk to our old friends," Lao Zhao said in the pavilion of the park, waving to Lao Li in the distance.

"No, no, recently the children have come back, they have not exercised, this big fish and meat eat too much, the weight is also rising, I have more exercise, control and control ah," Lao Li refused.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

"Old fellow, this is your wrong idea, people have said on the Internet, like we are older, it is good to have some meat on our bodies," Old Zhao said with a smile.

"Who says it's good for older people to gain weight? The ancients all said, it is difficult to buy old age to lose weight if you have money, the elderly have to lose weight to live longer, you don't always stay, you have to exercise more", Lao Li waved his hand towards Lao Zhao and ran deeper into the park.

I believe that in life, there are not a few debates like Lao Zhao and Lao Li about what kind of healthier weight for the elderly. There are even people who link the weight of the elderly to life expectancy, so for the elderly, is it better to be fat or thin? This article gives you the answer.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

First, "it is difficult to buy old to be thin" is really fake? The results of the study tell you

In the traditional concept of the elderly, "thin" implies good health, representing strong metabolic ability of the elderly, less fat in the body, and less prone to some chronic diseases, such as high blood pressure, hyperlipidemia, coronary heart disease, etc., so in the elderly circle has been circulating "thousands of dollars are difficult to buy old to thin" said, but a large number of experimental studies show that this statement or rumors.

Strictly speaking, there is currently no international standard for healthy weight specifically applied to the elderly, so most studies usually use body mass index, or BMI. BMI is calculated as: BMI = weight (kg) / height squared (m²).

For healthy adults, the normal range of BMI is 18.5-24, and the weight is more even, not fat or thin. When the BMI < 18.5, it is low weight, that is, malnutrition, when the BMI is > 24, it is overweight, and when the BMI is > 28, it is obese.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

The Japanese Epidemiological Society has conducted research on the weight and risk of disease in the elderly, the experiment spanned up to 10 years, the experiment involved about 52,000 Japanese people over 65 years old, the research team divided these elderly into two groups, one group for the elderly with a BMI > 24, and the other group for the elderly with a BMI < 18.5.

In the final visit survey, the experimenters found that in the past ten years, the elderly with a BMI < 18.5 had a 26.3% chance of suffering from cardiovascular diseases, such as hypertension and coronary heart disease, cognitive disorders, such as Alzheimer's disease, and a 16.4% chance of cardiovascular and cerebrovascular diseases and 43% of cognitive disorders in the elderly with a BMI > 24.

The experimental results showed that the odds of disease in slightly obese elderly people were much lower than those in lighter weight, and when comparing the life expectancy of the two groups of elderly people on average, the researchers also found that the life expectancy of slightly fatter people was about 6-7 years longer.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

Coincidentally, a study was also published in the Proceedings of the American Medical Association in 2019, which was conducted in the form of a questionnaire.

Researchers in Florida, USA, selected about 200,000 elderly people over 60 years old, mainly investigating the relationship between weight data and life expectancy of the elderly, after screening nearly 100 survey elements, the researchers found that the average age of slightly obese elderly people was about 73, and the overall probability of death was reduced by 6% compared with those with lower weight.

In this way, the traditional view that "the thinner the old man is, the longer he lives" is not reliable.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

As we age, the body's metabolism slows down, which means that the body's ability to absorb and utilize nutrients decreases, and muscle growth and maintenance require adequate nutrient supply. If you diet excessively, the body is thin, and the nutritional supplement of the muscles is insufficient, the muscles of the elderly will be lost at a rate of 15% per year, which may increase the risk of sarcopenia in the elderly.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

According to statistics, the probability of suffering from sarcopenia in the elderly over 60 years old in mainland China has exceeded 36%, senile sarcopenia is extremely harmful to the health of the elderly, it will not only weaken the muscle strength of the elderly, but also increase the burden on the bones, thereby increasing the risk of osteoporosis in the elderly, osteoporosis will make the bones of the elderly become fragile, prone to fractures, once fractures occur, then the life of the elderly will be seriously affected.

Therefore, it is extremely absurd to say that "it is difficult to buy old to thin" for the elderly, for the elderly "it is difficult to buy old meat, saving money is not as good as saving muscle", there are a large number of research data show that slightly fat elderly people live longer, do not believe you continue to look down.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

Second, slightly fat old people or longer life, have you reached the standard?

In life, we often hear some remarks about the relationship between the weight of the elderly and the relationship, indeed this statement is not groundless, studies have shown that there is a close relationship between the weight of the elderly and the life expectancy, and even the slightly obese elderly will live longer.

The study was conducted by a group of medical experts from the Chinese Center for Disease Control and Prevention, who selected about 550,000 middle-aged people aged about 35 as the study subjects, and after removing gender, medical history, living habits and other different factors, they were divided into three groups according to their weight base: normal weight group, slightly fat group and obese group.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

The researchers followed these people for up to 42 years, and by recording the number of people who died in this group in the past time, the researchers found an interesting phenomenon: the average age of the elderly in the slightly fat group was 6~10 years higher than the other two groups, and the relationship between weight and mortality was roughly U-shaped curve.

Why is this the result?

After comparing the bones, muscles, heart and lung capacity of these elderly people in the survey, the researchers found that the data of the elderly in the slightly fat group, that is, BMI (body mass index) in the range of 24.0~31.9, were better than the other two groups, which may be the reason for the longevity of the elderly in the slightly fat group.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

Slightly fat older people have stronger bodies than older people who are too thin. With the increase of age, the metabolism and various physiological functions of the elderly body will be lower than that of young people, if the body is too thin at this time, the various nutrients needed in the body are insufficient, it will lead to a decline in immunity, vulnerable to various diseases.

And the elderly are too thin will also increase the risk of fractures, the body's bone density will decrease with age, and fat as a buffer for bones, can well protect bones, delay the loss of calcium in bones. If the elderly are too thin will lead to weakened muscle strength, not enough fat reserves, in the face of some emergencies, such as bumps, falls, the bones of the elderly will directly contact the ground, prone to fracture problems, so the elderly moderate fat is good.

Is it better for the elderly to be fat or thinner? The study found that after the age of 65, slightly obese old people or live longer

Slightly obese older people have less physical burden than obese older people. Obese elderly often have many health problems, the body accumulates too much fat, will increase the heart's capacity load and resistance load, so obesity is often closely related to hypertension, coronary heart disease, hyperlipidemia, hyperuricemia, these cardiovascular and cerebrovascular diseases are an important cause of death in the elderly.

Slightly fat elderly due to moderate weight, although there is a certain amount of fat in the body, but does not exceed the load of the body, will not bring a heavy burden to the heart, and these fats can provide sufficient energy and nutrients for the body, maintain the normal body metabolism and daily life consumption of the elderly, enhance the body's resistance, thereby reducing the possibility of disease.

IV. Summary

All in all, for the elderly, whether the body is too thin or too fat is not good for their body, only by maintaining a slightly fat moderate weight, can they live longer. The elderly should pay attention to maintaining weight, eating enough energy in daily life, and exercising regularly, only in this way can they have a healthy and happy old age.

Bibliography:

Relationship between low body mass index and mortality risk in the elderly, Li Jianxin, Population and Economy, 2018-05-24

How to maintain a healthy weight for middle-aged and elderly people, Health Care Medical Garden, 2016-07-05

Evaluation of Weight Loss in the Elderly, Dai Jiangang, Foreign Medicine (Geriatrics), 1991-05-01

Elderly friends control the body is important to avoid "three less" and "three more", Shi Li, middle-aged and elderly health care