Rewrite to unique non-detectable text using your own words but keep the academic writing style: "The Body Mass Index (BMI) is a prevalent metric employed in epidemiological research for evaluating an individual's body weight (WHO, 2016). First proposed in 1972 (NAME_1 et NAME_2.), BMI is computed by dividing a person's weight (in kilograms) by the square of their height (in meters). This measure is utilized to categorize individuals as underweight, normal weight, overweight, and obese. In general, a BMI between 18.5 and 25 is deemed 'normal' weight, whereas a BMI ranging from 25 to 30 is classified as overweight, and 30 to 35 is identified as class I obesity (WHO 2016). Additionally, BMI values from 35 to 40 are labeled as class II obesity, and values exceeding 40 are regarded as severe obesity. Nevertheless, more recent studies have suggested that the 'normal' BMI range is more limited than previously believed, with both extremes correlating with heightened risks of chronic diseases and mortality (Flegal et NAME_2., 2002; NAME_3-NAME_4 et NAME_2., 2005; Kuk et NAME_2., 2016). Consequently, a BMI between 20 and 22.5 is linked to the lowest health hazards and is utilized to delineate the 'normal' body weight criteria in this investigation (Flegal et NAME_2., 2002; NAME_3-NAME_4 et NAME_2., 2005)." Provide exactly two different responses that are separated with 6 asterisk symbols: ******.
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