When you think of metabolism, you probably think of digestion and energy expenditure. It’s a bit more complicated, but metabolism is often simplified to this. for example, Mayo Clinic Metabolism is said to be a conversion process that converts the calories ingested by the body into energy.
However, calorie Converting to energy is actually a complex process that goes beyond digestion.According to the UK United Kingdom National Health Service, Metabolism refers to all the chemical processes that occur in the human body. These processes work to repair damage and keep your body functioning continuously, whether you are sleeping or awake.
Metabolism occurs in organisms of all sizes, including whales and whales. elephant NS Tardigrade When Bacteria..The only exception is virus, Does not have its own metabolism.However, a 2020 study published in the journal Nature Communications Despite their lack of metabolism, some viruses have reported that they can affect the metabolism of their hosts.
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What are the different types of metabolism?
Metabolism is a process that occurs at the cellular level. It can be divided into two forms: anabolic and catabolic. Anabolism is generally considered to be constructive metabolism and works to build complex molecules, while catabolism is considered destructive metabolism and breaks down complex molecules for fuel. ..according to Cleveland ClinicBoth of these processes are regulated by hormones such as adrenaline and estrogen. testosterone And insulin.
Catabolism is a mechanism used during digestion. This process allows the body to break down the foods and drinks you consume and turn them into usable nutrients. If you don’t burn enough calories, catabolism uses the body itself as fuel to break down fat and eventually muscle.
Anabolism is the opposite process of catabolism. It occurs every time the body forms tissue, from wound healing after injury to muscle building through exercise.
High metabolism vs. low metabolism
Metabolism is most often associated with a particular rate, such as fast, or Fast metabolism Metabolism is low or slow. People who talk about having a naturally high or low metabolic rate usually refer to the resting metabolic rate (basal or resting metabolic rate).
Russell Jones, a professor and senior researcher at the Van Andel Institute, a non-profit biomedical research and science education organization in Grand Rapids, said: Rapids, Michigan. This includes physiological processes such as breathing and the heart pumping blood throughout the body, but it also refers to processes at the cellular level, “said the human body, which is the smallest to perform these basic functions. Requires a limited amount of calories. remaining.
However, humans are not always resting. The body also burns calories when performing activities such as walking, working, and exercising. According to a study published by, a person’s total calorie expenditure comes from all the activities a person performs in a day, in addition to the basal metabolic rate. Centers for Disease Control and Prevention.. In general, consuming more calories than your body consumes more energy will gain weight, and consuming more energy than you consume will cause you to lose weight.
Related: Why do some people not gain weight?
Many factors, such as age, height, weight, and body composition, affect low and high basal metabolic rates.
Does metabolism slow down with age?
As you get older, your metabolism slows down because your basal metabolic rate decreases. This is a normal process that occurs in everyone, regardless of other factors such as genetics or body composition. “Human has distinct stages of life-changing metabolism. From newborns to toddlers, we need more energy than adults,” Jones told Live Science.
Until recently, researchers believed that metabolism fluctuated around key points in life, such as puberty. pregnancy And menopause. Some of these changes were supposed to be responsible for the weight gain that often occurs in people aged 40 to 60 years.However, a 2021 study published in the journal Chemistry If not, I suggested.
Related: Can reducing calories delay aging?
When an infant is born, it shares the same basal metabolic rate as the mother for about a month after birth. After these first few weeks, infant metabolism begins to increase and continues to increase during the first year of life until metabolism is 50% higher than the average adult rate.
The first major decline in metabolism occurs between the ages of 1 and 20, with a gradual slowdown in metabolism of about 3% each year. After this period, metabolism leveled off. “The overall metabolic rate of a person is fairly stable between the ages of 20 and 60, and there is little evidence that metabolism slows down in middle age,” Jones said.
Around the age of 60, metabolism begins to slow down again. At this point, metabolism slows down by about 0.7% per year, and the calorie requirement of the human body gradually decreases.
Is there a way to increase metabolism?
“Your genetics controls many aspects of body composition, such as height, muscle mass, and fat mass,” Jones said. All of these play a role in determining the metabolic rate. However, there are ways to increase and maintain healthy metabolism. “You have great control over your overall metabolic rate, simply through the level of physical activity and the amount you eat,” he said.
One popular diet known as Intermittent fasting, Limit calorie consumption to a set time each day. According to Jones, this diet can have a positive effect on metabolism in several ways. Intermittent fasting can regulate the production of insulin, an important metabolic hormone that regulates blood sugar levels and directs the body to store excess calories as fat. Strict regulation of insulin production. This allows the body to better distribute the nutrients it consumes from food, which reduces fat accumulation. ”It also helps reduce total calorie consumption and supports weight loss.
“You can also affect your metabolism by changing your body composition through exercise,” Jones added. “Muscles make up the majority of the calories you burn each day, even at rest, so the more muscle you have, the higher your metabolic rate.” If you’re looking for a surefire way to improve your metabolism, He recommends building muscle through aerobic exercise and strength training.
This article is for informational purposes only and is not intended to provide medical advice.
What is metabolism? | Live science
Source link What is metabolism? | Live science