Your BMR (basal metabolic rate), is the minimum number of calories your body needs to perform normal functions. Such as beating of our heart, respiration, and the maintenance of body temperature. These functions need about 60-70% of the calories we use.
BMR is influenced by a number of factors, including age, weight, height, gender, environmental temperature, dieting, and exercise habits. Metabolic rate is higher in younger person due to increased activity of cells undergoing division. And the taller and heavier a person is, the faster their metabolism. Because of the greater percentage of lean muscle tissue in the male body, men generally have a 10-15% faster BMR than women. And when you go on restrictive, traditional diets, your BMR can drop by as much as 20%. People living in tropical or very cold environments generally have BMR’s 5-20% higher than those living in more temperate climates. In general, depending on the intensity and duration, consistent exercise can also increase your BMR.
BMR is an essential factor in estimating how many calories you need to lose or gain weight. Most common factors that effect BMR are, genetics, gender, age, weight, body surface area, body fat percentage, diet, body health, glands and exercise. Whereas, fasting, starving or malnutrition can also laid to low BMR.
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