People seem to be more likely to gain weight when they reach a certain age.
The waist of the old man is no longer, replaced by a swimming ring, and it is still the kind that I dare not show when I go to the swimming pool. Being called on a weight scale during the physical examination of the unit is like a punishment, because it is impossible to accept the fact that he has become fat, and it may be the scene of a social death every minute.
Entertainment reports said that a middle-aged male celebrity “removed greasy” and thought he had gone to some thought class. I took a look at it with curiosity and found that it means “remove oil” literally. After losing weight, the whole person looks refreshed. The cosmetic effect is better than that of a beauty blogger.
A middle-aged blessing makes it easy for old boys to drink at class reunions and feel “destructed by years”, but in Japan they may be punished for breaking the law.
In 2008, the Japanese Ministry of Health, Labour and Welfare passed a decree requiring companies to measure the waist circumference of employees between 40 and 74 years old every year. The waist circumference of men should not exceed 33.5 inches (approximately 85 cm) and women should not exceed 35.4 inches (approximately 90 cm). The company will face fines if the waist circumference is too thick and the weight is too heavy. At the same time, employees whose waist circumference and weight do not meet the standard will also be required to perform physical management. This is probably the strangest law that is most unfriendly to middle-aged people.
People usually think that middle-aged people tend to gain weight because of slowed metabolism, but a study just published in the journal Science found that this is not the case.
Chair Professor of School of Pharmacy, Shenzhen University of Technology, Chinese Academy of Sciences, Chief Scientist, Energy Metabolism and Reproductive Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, John Roger Speakman team, and Duke University Herman Pontzer, associate professor of evolutionary anthropology, and nearly a hundred international research teams, through large-scale international collaborative research, revealed for the first time that human metabolism is divided into four stages throughout the life cycle, first increasing, then decreasing , And then stabilize, and then slowly decline.
In other words, a person’s metabolic rate reaches its peak sooner than expected, and then his metabolic rate is stable in middle age, and it begins to decline inevitably in old age.
The metabolic rate peaks in infancy
Middle-aged people who are fat to sad looking at their teenage photos can’t help but say “very thin when they were young”. Many people think that puberty is the peak of their metabolic rate, and they don’t get fat no matter how they eat, but this study found Infancy is the peak of the metabolic rate.
The study analyzed more than 6,600 subjects in 29 countries and regions around the world, including infants just one week old and 95-year-olds, covering almost all age groups. The study summarized and analyzed the energy expenditure throughout the life cycle, and found that the metabolic rate of infants from birth to one year of age rises rapidly. One-year-olds burn calories 50% faster than adults, and at the same time, the infant’s weight also increases to the time of birth. Tripled.
But in the first twelve months of life, babies are mostly lying down and sitting, and the amount of activity is not large. The dramatic increase in infant metabolic rate may be related to their amazing growth rate. What is happening in the baby’s cells makes the cells more active, but the specific mechanism is currently unclear.
After experiencing the initial rapid increase in the metabolic rate in infancy, data show that the metabolic rate will gradually slow down, about 3% annually, until the metabolic rate stabilizes and enters the normal state when people are in their twenties.
This has also subverted people’s previous imagination of adolescence. Although adolescence is when the body grows, various physical activities are also more active, but the daily energy demand of adolescents does not seem to have any increase, and the metabolic rate is on the contrary declining compared to the peak in infancy.
Middle-aged blessing is not due to changes in metabolic rate
And from the 20s to the 30s, 40s, and 50s, for decades, even if many people are indeed a little blessed, studies have found that energy consumption is the most stable and metabolic The rate is always maintained at the same level.
Even for pregnant women, the metabolic rate will not change much. The energy requirements of mothers during pregnancy increase with weight gain, but weight gain also occurs with the growth of the fetus, and the mother’s own energy requirements have not risen significantly. As for the boys whose wives are pregnant and follow the Fat Ruo two, it’s really just too much to eat, okay!
Spikeman pointed out that there are many factors for middle-aged development, but this study shows that, at the very least, changes in metabolic rate are not one of the reasons for gaining weight.
The human metabolic rate does not really start to decline until after the age of sixty, and this slowdown is gradual, with a slight decrease of 0.7% every year. Of course, by the age of nineties, the cumulative decline in metabolic rate is 26% less than that of middle age, and the difference will be more obvious. Part of the reason may be that muscle decreases with age, and muscle burns more calories than fat. Part of the reason is that cell-level metabolism will also slow down after old age. The mechanism of metabolic rate changes accompanying aging is currently not fully understood.
For the first time, this research incorporates the energy needed for people’s daily activities into a large-scale study.
Many large-scale studies in the past measured the human body’s basal metabolic rate, that is, the energy consumed by important basic functions such as breathing, digestion, and heartbeat, and the calories needed to maintain life.
But the basal metabolism is only equivalent to 50% to 70% of the calories we burn every day, without considering the energy we spend doing various things, such as washing and cleaning and other housework, walking the dog and shopping for leisure and entertainment. , There is also the exercise consumption of running yoga and iron, even sitting quietly and thinking will have a certain energy consumption.
By measuring people’s energy expenditure in daily life, the research has overturned people’s understanding of metabolism and provided a basis for reassessing people’s energy needs and providing dietary recommendations.
If you think you’re fat when you drink water, don’t blame your age. You have to ask yourself if the water you drink is really boiled water. Or fancy juice, brown sugar milk tea, cheese milk tea, or happy fat house water?
Maybe what you need is to accurately calculate your energy needs and re-plan your diet strategy so that you can achieve a balanced nutrition and eat happily without gaining weight.