Metabolism: Learn the basics

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Metabolism: Learn the basics

Through the "building material" that we take into our bodies: food, liquids, oxygen, we continuously renew our bodies. A person's entire body changes dozens of times during their lifetime. During metabolism, matter and energy are exchanged within the body.

Two types of metabolic processes exist: As a result of anabolic processes, biologically important compounds are built from raw materials (building blood, hormones, enzymes, glycogen...). For energy and organism needs, catabolic processes breakdown tissue in the direction of tissue breakdown.

Normal conditions should ensure a balance between both processes. When the body is growing or developing, anabolic processes predominate over catabolic ones, while when the body is ill or starved, catabolic processes predominate.

In order to maintain the basic life functions of an awake organism in a normal state, basal metabolism is the smallest amount of energy required. The basal metabolism includes only muscle tone maintenance. The energy consumption of an already calm, upright posture increases by 10%.

The basal metabolism of each individual differs due to factors such as age, gender, physical activity, how much energy is consumed during employment, eating habits, and genetic predispositions. In childhood and youth, stressful situations, fevers, and increased or decreased ambient temperatures, basal metabolism is higher.

Basal metabolic rate

The basal metabolic rate can be calculated using the following formula: body weight (kg) x 20 kcal For example: For someone weighing 60 kg, 1200 kcal is the minimum amount of calories they need per day (60 kg x 20 kcal is the minimum amount of calories they need per day).

As we age, our metabolism slows down. There are also other contributing factors, including a lack of physical activity, sedentary lifestyles, hunger, unhealthy eating habits, and constant experimenting with diets. The metabolism can also be sped up.

Even at rest, muscle mass consumes more calories than other fat parts of the body (especially during physical activity!). It is possible to consume more energy while watching television even if you reduce body fat and increase muscle mass.