Can Your BMI Predict How Long You’ll Live?

Can Your BMI Predict How Long You'll Live?

Can Your BMI Predict How Long You'll Live?

Body mass index( BMI) is a common measure of body fat, but new research shows that having a BMI in the “normal weight” range is not always the healthiest for every person. In fact, for many people, having a BMI in the overweight scope may be linked with the lowest hazard of dying over a 13 -year period, the research suggests.

Researchers looked at data on about 400,000 people in the U.S. who were ages 50 to 71 at the start of the study, in 1995. The researchers followed up with them through 2009, and about 112,000 people in the study had died by then. The findings showed that the “best” BMI for the person or persons in the study in terms of their lifespan was 26, on average.

A person’s BMI is calculated based on their height and weight. Usually, a BMI below 18.5 is considered underweight, from 18.5 to 24.9 is considered normal weight, from 25 to 29.9 is considered overweight, and 30 and over is considered obese.

But these categories lump together people who actually have totally different BMIs, said analyse writer Howard Karloff, a computer scientist formerly with Yahoo Labs and AT& T Labs, who worked on the new survey because of his expertise in crunching large decides of data with numerous interacting variables. In the usual BMI categories, people with body weights that differ by 20 percentage may be grouped together, Karloff said.[ 9 Healthy Habits You Can Do in 1 Minute( Or Less )]

Previous studies have suggested that BMI is not a perfect style to measure a person’s health. For instance, researchers reported in 2015 that colorectal cancer patients with a BMI higher than 25 lived longer than those with a BMI under 25. Another survey, published in 2011, goes to show that people with a BMI of 26 to 29 are the most likely to survive after having surgery than people with a BMI of 23 or less.

In the new analyze, the researchers examined how BMI might relate to people’s danger of succumbing. But instead of considering people’s BMIs in the usual categories( of normal weight, overweight and so on ), the researchers employed the individuals’ BMI numbers.

For each person in the study, the researchers looked at a dozen factors that could influence their risk of dying during a given period, including their age, race, education level, alcohol consumption, marital status and exercising level. The researchers calculated each person’s “personalized optimal BMI, ” which is the BMI that, based on these variables, would be associated with the lowest relative risk of demise for that person.

The findings showed that any individual’s “optimal” BMI depends on his or her own features, and that a “one-size-fits-all” recommendation about what BMI people should strive for may not be best, Karloff said.

“We were able to generate personalized some suggestions that, according to our model … are more accurate than the uniform recommendations given by the CDC[ Centers for Disease Control and Prevention ], ” Karloff told Live Science.

Dr. Rexford Ahima, a professor of medicine at the University of Pennsylvania Perelman School of Medicine who was not involved in the study, said that “Body mass allows[ researchers] to compare relative weights of people across populations, but was never intended to be used as a healthy tool.”

A person’s BMI is “just a measure of fatness, ” Ahima told Live Science. “It says nothing about your risk of developing any disease or dying.”

The study was published online Jan. 8 in the periodical Obesity.

Follow Live Science @livescience, Facebook& Google +. Originally published on Live Science.

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Can Your BMI Predict How Long You'll Live?
Can Your BMI Predict How Long You'll Live?
Can Your BMI Predict How Long You'll Live?
Can Your BMI Predict How Long You'll Live?
Can Your BMI Predict How Long You'll Live?

Can Your BMI Predict How Long You'll Live?

Can Your BMI Predict How Long You'll Live?

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