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Body Mass Index (BMI)

What’s your ideal weight? The Body Mass Index (BMI) is a mathematical equation that is supposed to tell you whether you have the ideal weight for your height. Does it work? Let’s investigate…

 

Adolphe's Equation

It was 1830 when a famous mathematician from Belgium named Adolphe Quetelet came up with the BMI equation. This is how you do it:

  • Weigh yourself in pounds (lbs)
  • Find your height (inches)
  • [Weight / (Height x Height)] x 703 = BMI

Now once you have your answer, there is a chart where you can find your number and it will tell you if you are the ideal weight for your height. Here are the results:

  • Less than 15 = Anorexic
  • 15-18.49 = Underweight
  • 18.5 - 25 = Ideal
  • 25 – 30 = Overweight
  • 30 – 40 = Obese
  • More than 40 = Morbidly Obese

Extra Experiment

Hmm, I am a little skeptical about this formula and results. How could this chart determine whether someone is obese without considering how much body fat someone has compared to their muscle mass? Muscles weigh more than body fat so would that be fair to people with lots of muscles? Just for fun, let’s experiment and see how some famous athletes match up to these results.

Tom Brady (quarterback for New England Patriots)

[225 lbs / (76 x 76 inches)] x 703 = 27 - Overweight

Kobe Bryant (Point Guard for the Los Angeles Lakers)

[200 lbs / (78 x 78 inches)] x 703 = 25 – Overweight

Serena Williams (the tennis player)

[178 lbs / 70 x 70 inches] x 703 = 25.5 - Overweight

Whaaa??!?! It seems like these amazing athletes have a huge disadvantage. Well, it’s probably because they have so much muscle and muscle weighs much more than fat, so the BMI doesn’t really work for you if you have muscles. Let’s see how it would work for someone a little more normal… how about a famous actor?

Tom Cruise

[201 lbs / (67 x 67 inches)] x 703 = 31 – OBESE???

OMG! If Tom Cruise is obese, maybe the equation doesn’t work very well for short guys either. Let’s try someone else we can all relate to…

Justin Bieber

[130 lbs / (65 x 65)] x 703 = 21 - IDEAL!!!

Kidzworld Conclusion

Hooray, so I guess if you are a singer with a cute haircut, the BMI is a perfect chart to help you find out if you are at your ideal weight... Uhhhh anyways, maybe since this equation was invented over 150 years ago, we should invent a new method. People have changed a lot in the past century. We eat differently, we play more sports, as more cultures combine in America, our bodies are changing. The BMI is total BS!

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Sports In The Forums

PitbullLover777
Cheer-leading is a sport - most people think that it is not - but it is Yes it looks like they are just cheering on the football players - but their routines and being able to hold up girls over their head takes strength, and they work really hard to make everything look good.
reply about 20 hours
ererie
ererie posted in Basketball:
I liked cheering for the underdog, so I've always cheered for the Cavs. I'd like to see how this year's line-up goes, though our past best point guard left for the Celtics.  :/
reply 1 day
ererie
ererie posted in Basketball:
LeBronBron
reply 1 day
ererie
ererie posted in Basketball:
Basketball.
reply 1 day
MikeYT
Mayo lost against Dublin again. 1-16 to 1-17. I support Mayo, and I am horrified to be honest. I don't want to sound like a sore loser, but I think Dublin fouled Mayo way more times than they were punished for it. Mayo rarely got any frees and the last free of the game was a minute before it ended and Dublin were taking it from very far away. Of course, they got it. Up until then, it was 1-16 to 1-16. I guess Mayo won't be taking home the cup again for another year.
reply 4 days