BMI is your body mass index. If you have a BMI of 25 or higher, you're considered overweight and 30 or above is obese. The article describes how it's calculated:
BMI is determined by this equation: A person’s weight divided by his or her height squared. Generally a BMI of 25 or above indicates a person is overweight; 30 or above indicates obesity. A person with a higher BMI is thought to be at a greater risk of heart disease, diabetes and other weight-related problems.
The problem is that it doesn't take into consideration how much muscle a person might have, age, or other factors.
The article gives an example that using this formula, 60% of NFL football players would be considered obese. But really, I think that can even be expanded to show this formula is inaccurate for just about anyone that has a regular workout routine.
Now, don't take this to mean that we as a society are NOT getting fatter. The BMI might not be the greatest measure but, spend a half hour at any public place and you'll notice that 2 out of 3 people are overweight/obese.
www.leanbodyfitness.com
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