Live Longer...
Gain Weight!
I've been called a lot of things over the years because of my devotion to fitness. Health nut. Fanatic. Twinkle toes. (I'll leave that last one to your imagination.) It never bothered me because the facts are simple and straightforward. People, who keep their weight under control and are in-shape, live longer more active lives than people who don't.
Now however, there are new numbers from the Centers for Disease Control and Prevention (CDC) that, at first glance, seem to contradict that long-standing belief.
The CDC said in April of 2005 that being obese (extremely overweight) is definitely lethal...but if you are only moderately overweight, you actually have a lower risk of death than people who are a normal weight.
Suddenly overweight people everywhere were standing up and saying, "Ha! I can be fat AND live longer than you health nuts!"
Unfortunately that's not true.
First, it helps to understand how the CDC grouped people in its study into different categories. They used a scale called Body Mass Index or BMI.
(To learn more about BMI read What is BMI? below.)
Underweight had a BMI of LESS THAN 18.5.
Proper weight had a BMI of 18.5 to LESS THAN 25.
Overweight had a BMI of 25 to LESS THAN 30.
Obese had a BMI of 30 and up.
What the CDC reported was that people in the overweight category actually lived slightly longer than people in the proper weight category. It doesn't take a genius to figure out why. I can sum it up in 6 words.
MUSCLE is more dense than FAT.
I stand 5'11" and weigh 195 pounds. On the BMI scale I'm a 27 and technically am overweight and prone to health risks. But as any doctor who examines me knows, I have a low percentage of body fat and a high percentage of muscle. My weight is actually ideal, but you wouldn't know that just looking at my BMI.
The CDC study didn't take into account the amount of fat or muscle anyone had. People who work out regularly tend to be healthier and live longer than the rest of the population, but they weigh more than their BMI ideal because they carry more (dense) muscle.
When the CDC grouped everyone into simple BMI categories, they put one of the healthiest segments of the population in the "overweight" category. Not surprisingly, the "overweight" group had the highest average longevity thanks to the boost from all the people who work out.
It wasn't Mrs. Smith's Pies that helped people live longer, it was the Smith Machine. Fit people carried overweight people in the study...that won't happen in real life.
THE BOTTOM LINE: If you workout regularly and your bodyfat percentage is acceptable, your BMI can be higher and not jeopardize your health. If you don't workout you should get your weight within the suggested "healthy" BMI range.