Is BMI an Accurate Measure of Health?

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SUMMARY

The discussion highlights the limitations of Body Mass Index (BMI) as a health metric, referencing a 2016 article from Science Daily. It states that nearly 50% of individuals classified as "overweight" by BMI are actually healthy according to more comprehensive health metrics, while about 30% of those with a "normal" BMI are unhealthy. The conversation emphasizes that BMI should be used cautiously by physicians, particularly when applied by employers and insurance companies without consideration of individual health factors. Additionally, the discussion notes the lack of age consideration in BMI assessments, which may overlook the health risks in older populations.

PREREQUISITES
  • Understanding of Body Mass Index (BMI) and its calculation
  • Knowledge of metabolic syndrome and cardiovascular disease risk factors
  • Familiarity with health metrics beyond BMI, such as body composition analysis
  • Awareness of age-related health considerations in medical assessments
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  • Research the limitations of BMI in health assessments
  • Explore alternative health metrics like body fat percentage and waist-to-height ratio
  • Learn about metabolic syndrome and its implications for health
  • Investigate age-specific health risks and their relation to BMI
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Healthcare professionals, fitness trainers, researchers in public health, and individuals interested in understanding the complexities of health metrics and their implications for health assessments.

Choppy
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I saw this article this morning:
http://www.sciencedaily.com/releases/2016/02/160204042240.htm

According to the article close to half of the people considered "overweight" by the BMI are in fact healthy by other more rigorous metrics, and about 30% of those with a "normal" BMI are unhealthy.

I would argue that like any other metric, BMI can be used as a tool by physicians to evaluate health, but that's because physicians are generally aware of it's limitations. The danger comes in when employers and insurance companies start applying it blindly.
 
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The health issue of obesity and overweight as it is usually posed is that these people are at more risk of developing metabolic syndrome or cardiovascular disease later on in life not that they have it. If you are young enough you are usually healthy. Smoker are healthy until they develop lung cancer or COPD.

There is no reference to age so It seems they studied the whole population not the part (>60 yrs) that is more likely to manifest a disease process.
 
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