Metabolism refers to the chemical processes that occur within a living organism to maintain life. These processes include the breakdown of food & its conversion into energy, as well as the elimination of waste products. The rate at which metabolism occurs is known as the metabolic rate, which varies between individuals.
The metabolism of an individual is influenced by a number of factors, like genetics, age, gender, body size & composition, and physical activity levels. People with a naturally high metabolic rate tend to burn more calories at rest & during physical activity, while those with a low rate may struggle to lose weight even with diet and exercise.
Basal Metabolic Rate
The basal metabolic rate (BMR) is a measure of the energy needed by the body to perform basic functions such as breathing, circulation, cell production, and makes up the majority of an individual’s daily caloric needs. BMR decreases with age, and/or with a decrease in muscle mass and an increase in body fat. Physical activity levels also play a major role in determining BMR. Muscle tissue burns more calories than fat tissue, so increasing muscle mass through exercise can help to boost BMR. In addition, regular physical activity can also increase the number of calories burned throughout the day, even when the body is at rest.
Diet is another important factor that affects metabolism. Consuming too few calories can slow metabolism, as the body goes into “starvation mode” and conserves energy. On the other hand, consuming a balanced diet with adequate amounts of protein, healthy fats, and complex carbohydrates can help to support metabolism and promote weight loss.
In conclusion, metabolism is a complex and dynamic process that is influenced by a number of factors. Understanding the role of genetics, age, gender, physical activity, and diet in determining metabolism can help individuals make lifestyle choices that support a healthy and efficient metabolism.