Fat Free Fitness Health, Diet and Fitness Today - Friday 4th December 2009
Posted: 05/12/2009 at 08:13am by Rich Leigh, founder of Fat Free Fitness
Today, in our second ever Health, Diet and Fitness Today, which will appear every week day, I'm going to be looking at a some new research.
A recent American study has compared smoking to obesity, and found that obesity is actually negating the positive effects of people giving up smoking.
By 2020, according to the American study, the typical 18-year-old will gain 0.31 years due to the drop in smoking rates (above and beyond life span increases caused by other factors). But the increase in obesity rates during the same period will reduce life expectancy by 1.02 years, the researchers say. These rates are sure to be comparatively similar for the UK, where rates of obesity are increasing.
During the next 10 years, in other words, we'll lose 0.71 years of our life span, time that we would have gained if there weren’t so many obese people, according to the estimates published this week in the New England Journal of Medicine (NEJM).
The link is a little effusive as one doesn’t necessarily directly affect the other (but does guarantee headlines), but is still an interesting comparison.
Smoking, a major risk factor for lung disease, heart disease, and cancer, has decreased by 20 percent in the United States in the past 15 years, according to the study, which is great news.
However, over the same period, obesity has increased by 48 percent. By 2020, the report predicts, smoking will decrease by 21 percent, but 45 percent of the population will be obese.
The smoking trends used in the study were based on data from the National Health Interview Survey, and the body-mass index (BMI) trends were derived from the National Health and Nutrition Examination Survey. BMI levels were classified according to the World Health Organization's guidelines for obesity.
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