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How Important Is BMI?

People want to be healthy, but there is a common misconception that health is determined by a person's weight. When it comes to weight and wellness the important thing to consider is BMI.

  1. Definition

    • Body mass index (BMI) is the measurement of a person's body fat based on their height and weight. According to the National Heart, Lung and Blood Institute, where a person's BMI calculation falls will determine if that person is healthy or not. For example, if someone has a BMI of 30 or greater, this qualifies him as "obese."

    Significance

    • According to Health Line, BMI is directly associated with a person's health and longevity. People with a high BMI risk having health complications, such as heart failure or malnutrition, because it means that their bodies are storing excessive levels of fats. Lower BMI's suggest a person has a leaner supply of fat in her body, which is better on the cardiovascular system. High BMI in the form of obesity has been linked to shorter life spans, says Health Line.

    Considerations

    • People can increase or decrease their BMI through lifestyle changes. Exercise and diet can keep BMI low, and even reverse high BMI. Through diet and exercise, the body can forfeit its excessive fat supply, which lowers the BMI.

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