![]() For example, results can be thrown off by pregnancy or high muscle mass, and it may not be a good measure of health for children or the elderly. A person is considered underweight if the BMI is less than 18.5.Īs with most measures of health, BMI is not a perfect test. What's a normal BMI?Ī normal BMI is between18.5 and 25 a person with a BMI between 25 and 30 is considered overweight and a person with a BMI over 30 is considered obese. Although the origin of the BMI is over 200 years old, it is fairly new as a measure of health. These charts were cumbersome to use, and it was never clear how one was to decide a person's "frame size."īMI does something similar: it expresses the relationship between your height and weight as a single number that is not dependent on frame size. ![]() These charts came from actuarial statistics, calculations that life insurance companies use to determine your likelihood of reaching an advanced age based on data from thousands of people. A number of years ago, I remember using charts that asked you to find your height along the left side and then slide your finger to the right to see your "ideal weight" from choices listed under small, medium, or large "frame" sizes. To understand what your BMI means, it's useful to take a step back and understand what it's measuring and why it's measured.īMI is a calculation of your size that takes into account your height and weight. So, now that you know your BMI, is it worth knowing? What are you going to do with it? What your BMI means Or, you can calculate it yourself, using this formula:īMI = (weight in pounds x 703) / (height in inches x height in inches). If you don't know your BMI, you can use a BMI calculator available online, including this one at Harvard Health Publishing. It does not store any personal data.Do you know your BMI? Increasingly, people know theirs, just as they know their cholesterol level. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. Research shows that nearly 60 percent of overweight children aged 5 to 17 had at least one risk factor for cardiovascular disease. ‘Maintaining a healthy weight during childhood is especially important for heart health. The American Heart Association use BMI as an indicator of heart health, too. be a vehicle for engaging with children and families about healthy lifestyles and weight issues.increase public and professional understanding of weight issues in children and.gather population-level data to allow analysis of trends in growth patterns and obesity.inform local planning and delivery of services for children. ![]() The UK’s National Child Measurement Programme ( NCMP) was set up in line with the government’s strategy to tackle obesity, and to: It’s relatively easy to measure and can inform public health policy, supporting childhood obesity prevention programmes, for example. Nevertheless, BMI is a good indicator of health for broad population data.
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