Write short note on following.1.Ideal body weight (IBW)2.Body mass index (BMI)

Ideal Body Weight (IBW): Ideal Body Weight refers to the weight that is believed to be optimal for good health. It is a theoretical weight that can vary depending on various factors such as age, sex, and bone density. The most commonly used method to calculate IBW is the Devine formula. For men, it is 50 kg + 2.3 kg for each inch over 5 feet. For women, it is 45.5 kg + 2.3 kg for each inch over 5 feet. However, it's important to note that this is a general guideline and individual health circumstances should always be taken into account.

Body Mass Index (BMI): Body Mass Index is a measure used to determine whether a person has a healthy body weight for a given height. It is calculated by dividing a person's weight in kilograms by the square of their height in meters. The resulting number is used to classify the individual into categories such as underweight, normal weight, overweight, or obese. For example, a BMI less than 18.5 is considered underweight, 18.5-24.9 is normal, 25-29.9 is overweight, and 30 or above is obese. Like IBW, BMI is a useful tool but it does not take into account muscle mass, bone density, overall body composition, and racial and sex differences. Therefore, it should not be the only indicator of a healthy body weight.