Colorectal cancer patients may live longer due to obesity

There is no doubt that obesity has a number of drawback sand the health experts always asks one to be fit, and healthy and remove the unnecessary fat and obesity from the body. But this obesity has its advantages as well and it can be so good for a person that a person may live longer for this overweight physical state. This has, even been claimed by a group of researchers that obesity may boost the survival chances of people diagnosed with advanced colorectal cancer.

Completely contrary to what was believed before, the researchers now have found that the obese patients suffering from colorectal cancer are prone to live longer than the comparatively thinner and less obese patients. Previously it was believed that a high body-mass index (BMI) has association with a higher risk for colorectal cancer. But it is now found that the fatter ones complement well with the treatments and live longer than the thinner patients.

The lead author of the study, Yousuf Zafar, associate professor of medicine at the Duke University Medical Centre, said, "Contrary to our hypothesis, patients who had the lowest BMI were at risk for having the shortest survival.  In this case, patients with the lowest body weight -- people who had metastatic colon cancer and a BMI of less than 25 -- were at the highest risk."

The patients with healthy body weight performed comparatively poor in the race of life while suffering from the colorectal cancer and this was shocking to discover for the researchers. The thinner people lived two-and-a-half months less than overweight patients. 

The researchers conducted the study by examining data pooled from 6,128 patients. They could notice that patients with the lowest BMI from 20 to 24.9, which is considered as a healthy weight by BMI guidelines, survived an average of 21.1 months after starting treatment.

While the patients with a BMI of 25 to 29, which is considered as overweight, survived an average of 23.5 months. Although the difference is not so big, but yet this is remarkable that their obese health helps them in living a bit longer than the thinner ones.

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