Obesity Cuts Life Expectancy By As Much As Seven Years
Obesity is known to be associated with many potentially life threatening diseases such as heart disease, diabetes, and some forms of cancer. According to most scientific studies, there is an inverse linear relationship between life expectancy and body mass index (BMI). Those who are considered obese (a BMI greater than 30) can expect to live on average 6 to 7 years less than people in the normal weight range (BMI less than 25).
One study, published in the journal Annals of Internal Medicine, looked at the impact obesity has on remaining life expectancy at 40 years of age. The study involved 3,457 individuals who were divided into three groups: normal weight (BMI < 25), overweight (BMI between 25 and 30), and obese (BMI > 30).
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