Xác định tỷ lệ trao đổi chất cơ bản (quá trình trao đổi chất khi nghỉ). Tính tổng lượng calo cần cung cấp mỗi ngày bằng công thức Harris-Benedict.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
You can find an online calculator, or you can use the following formulas, depending on your gender:  Women: BMR = 655 + (4.35 x weight in pounds) + (4.7 x height in inches) - (4.7 x age in years)  Men: BMR = 66 + (6.23 x weight in pounds) + (12.7 x height in inches) - (6.8 x age in year) Once you have calculated your BMR, you can estimate your total calorie needs for different levels of activity.  Decreasing your metabolism means you are "turning down" your body's internal furnaces, which lowers