health
Nutrition and diet
Not what you thought: this is the age when our metabolism goes wrong
Almost everyone over the age of forty is familiar with this feeling that no matter what you do - it will be harder to lose weight.
A huge study examined and found what is the real age at which our metabolism is impaired, and this is a particularly surprising statistic
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metabolism
Digestive System
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Wednesday, 18 August 2021, 07:02 Updated: 07:21
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While we all blame genetics or age when it comes to weight loss (or rather gaining weight), research that has conducted an unprecedented analysis of the body's energy use shows that it's more complicated than you think.
The study, which was conducted on 6,400 people, from the age of eight to the age of 95, in 29 countries, indicates that the metabolism remains rather stable throughout life.
It peaks at one year of age, stabilizes between the ages of 20 and 60 and then drops steadily.
Metabolism, or in Hebrew metabolism, is a process in which food or food becomes energy measured in calories, and constitutes a kind of fuel for the body.
In fact, the metabolism never stops and is necessary for our functioning and therefore occurs in all the cells in the body.
A fast metabolic rate, expressed in a faster "burning" of calories and allows you to lose weight and maintain the existing one relatively easily.
Slow metabolism, however, makes it difficult to lose weight.
By using isotopes placed in drinking water and then monitoring through urine, the researchers formulated a daily energy expenditure figure for each participant.
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To the full article
The study, published in the journal Science, found four stages of metabolic life:
Birth to one year of age, when the metabolism becomes the same as that of the mother for a life 50 percent higher than that of adults.
Slight slowdown until age 20, with no leap during any pubertal changes
There is no change at all between the ages of 20 to 60
A steady decline, with annual declines (of about 0.7 percent per year) at age 90 leaving the metabolism 26 percent lower than in mid-life
"It's a picture we've never seen before and it's a lot of surprises," said one of the researchers, Professor John Spickman, of the University of Aberdeen in Scotland.
"The most surprising thing for me is that there is no change during adulthood - if you are experiencing a mid-life crisis you can no longer blame it for the decline in your metabolic rate."
Do not blame age when it comes to weight gain (Photo: Walla system !, Walla system)
Other surprises came from what the study did not find: for example - no metabolic increase was recorded during adolescence or pregnancy and there was no slowdown around menopause.
The high metabolism in the first years of life also highlights how important it is at the moment of development and why childhood malnutrition can have lifelong consequences.
For example, researchers found that a one-year-old child burns around 50 percent more calories than an adult.
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"When people talk about metabolism, they think about diet and exercise - but it's deeper than that, we're actually watching our bodies, cells, their work," Professor Herman Ponzer of Duke University told the BBC.
"They're incredibly busy at one year of age and when we see decreases with age, we see the cells stop working."
An energy crisis in our body as well
Professor Tom Sanders, of King's College London, said: "Interestingly, they found very small differences in total energy expenditure between early adulthood and middle age - a time when most adults in developed countries gained weight." food energy and decrease energy costs. "
" We must urgently turn our attention not only to the global energy crisis defined by burning fuels, but also the energy crisis caused by insufficient combustion of calories in our bodies, "he added.
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