It’s easy, but it’s often said. All you need to do to maintain a healthy weight is to make sure that the number of calories you consume is the same as the number of calories you consume. If you consume more calories or energy than you use, you will gain weight. If the output is larger than the input, you lose it. However, although we are often aware that we burn calories during exercise, 55-70% of what we actually eat and drink is our body to keep us alive. It is aimed at fueling all the invisible chemical reactions that occur in. “We think of metabolism as just exercise, but it’s not the only one,” says Herman Pontzer, an associate professor of evolutionary anthropology at Duke University. “It’s literally the current total of how busy your cells are throughout the day.” Calculating your total energy expenditure will give you the number of calories you need to stay alive. But it also tells us “how the body works,” says Pontzer. “It cannot be measured directly beyond energy consumption.”
Scientists have been studying metabolism for at least a century, but how does metabolism change throughout human life by accurately measuring metabolism over real-life situations, a sufficient number of people, and a sufficient age group? I couldn’t confirm. span. It is clear that the larger someone is, the more cells they have and therefore the more total calories they burn in a day. However, it was much more difficult to assess whether variables such as age, gender, lifestyle and illness affect our energy expenditure. This lack of data led to assumptions rooted in personal experience. For example, significant hormonal changes, such as those that occur during puberty and menopause, accelerate or slow metabolism and increase or decrease daily calorie expenditure. Or, men are inherently faster in metabolism than women. Because they seem to be able to lose weight more easily. Or, our energy expenditure slows down in middle age and begins to gain gradual and inevitable weight gain. “I’m in my 40s. I feel different than when I was in my 20s — I buy it too,” says Pontzer. “All that intuition wasn’t backed up by the data. It certainly seemed.”
But last month, a paper published in Science by Pontzer and more than 80 co-authors. It revealed that much of what we thought we knew about metabolism was wrong. Using data previously collected from more than 6,400 subjects aged 8 to 95 years, adjusting body size and the amount of fat and muscle present, Our metabolism generally goes through four different life phases.. The metabolism of newborns is similar to that of adults. After that, about 1 month after birth, the metabolic rate begins to rise rapidly, and at 9 to 15 months, it is more than 50% higher than that of adults. This is equivalent to an adult who burns about 4,000 calories per day. (The U.S. Department of Health and Human Services estimates that on average, adult women need 1,600-2,400 calories per day and adult men need 2,000-3,000 calories.) At that point, between the ages of 1 and 2. During that time energy consumption begins to decline. It keeps falling until about 20 years old. From there, it will be stable for the next 40 years, whether pregnant or menopausal. You burn calories at age 55 as efficiently as you are 25. At the age of 60, energy consumption begins to decline again and continues until the end of our lives. Men observed by researchers do not have an inherently faster metabolism than women. Rather, they tend to burn more calories per day, depending on their size, because they usually have a higher percentage of muscles that use more energy than fat.
New science on how to burn calories
Source link New science on how to burn calories