It has been long known that in countries where the socio-economic gap is high, the poor die sooner. The risk of dying also increases if one is in an unhappy job situation or having a stressful life at home. There have been many studies that have shown that being overweight or obese increases our risk of dying sooner. But when these studies are adjusted for socio economic factors, then the relationship between weight and risk of death becomes surprising.
Now being overweight or obese carries the same risk as “normal” weight people. In fact being overweight carries a slightly less risk. The underweight and those who are morbidly obese have substantial risks of dying sooner. This is a huge surprise!
Let us understand this better:
- Body Mass Index or BMI is determined by dividing your weight in kilogram by the square of your height in meters. If you do not want to do the math you can use this calculator to find your BMI.
- Those with BMI less than 18.5 are considered underweight and those with BMI over 35 are considered morbidly obese. Both these group have substantial risks of dying sooner. The low BMI people will improve their life expectancy by gaining weight and those with BMI above 35 should plan to lose weight.
- Those with BMI between 18.5 and 24.9 are considered “normal”. While those with BMI between 25 and 29.9 are classified as “overweight”. If you have a BMI between 30 and 34.9 then you are classified as “obese”. After adjusting for socio-economic factors, the risk of dying is same for those classified as “normal” and “obese”. The risk of those in the “overweight” category is slightly less than compared to the other two groups.
- If you are sedentary, then irrespective of the weight group you belong to, your risk of dying is increased substantially. In such cases if you add a daily 20 minute walk at a relaxed pace to your routine, you can make substantial gains to your life expectancy.
- If the circumference of your waist is more than the circumference around your hip then your risk increases. Thus if your “gut to butt” ratio is over 1 and if you are man, and over 0.9 if you are a woman, then your risk of dying is increased.
So what are the takeaways? Continue reading



