Editing BMI

'''Body Mass Index''' ('''BMI''') is a numerical value derived from an individual's weight and height, providing a reliable indicator of body fatness for most people. It is used as a screening tool to categorize individuals into weight categories that may lead to health problems. BMI is calculated by dividing a person's weight in kilograms by the square of their height in meters (kg/m^2).

== Calculation ==
The formula for BMI is:
:'''BMI = weight (kg) / [height (m)]^2'''

For those using pounds and inches, the formula is:
:'''BMI = [weight (lbs) / [height (in)]^2] x 703'''

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Based on the BMI value, individuals are classified into the following categories:
* '''Underweight:''' BMI less than 18.5
* '''Normal weight:''' BMI 18.5–24.9
* '''Overweight:''' BMI 25–29.9
* '''Obesity:''' BMI 30 or more

== Uses ==
BMI is widely used in the medical field as a simple and quick method to assess body fatness. It helps in identifying individuals at risk of developing obesity-related health conditions such as [[Type 2 diabetes]], [[heart disease]], and certain types of [[cancer]]. However, it is important to note that BMI does not directly measure body fat or indicate the distribution of fat throughout the body.

== Limitations ==
While BMI is a useful tool, it has its limitations. It may not accurately reflect the body fat percentage in athletes, pregnant women, the elderly, and individuals with a muscular build. In such cases, other measures of body fatness or health assessments may be more appropriate.

== Health Risks ==
A high BMI can indicate a high body fatness, which is associated with an increased risk of several health conditions, including:
* [[Cardiovascular diseases]]
* [[Type 2 diabetes]]
* [[Hypertension]]
* [[Sleep apnea]]
* Certain types of [[cancer]]

Conversely, a low BMI can also be a sign of undernutrition, leading to health issues such as:
* Weakened immune system
* Osteoporosis
* Anemia
* Fertility issues

== Conclusion ==
BMI is a valuable tool for assessing body fatness and potential health risks. However, it should be used as part of a comprehensive health assessment, including lifestyle, dietary habits, and other health-related factors.

[[Category:Medical terminology]]
[[Category:Obesity]]
[[Category:Nutrition]]
[[Category:Health indicators]]

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