Obesity is associated with an increased risk of colorectal cancer, while obesity and smoking both raise the odds for throat malignancies, two new studies find.
In the first study, University of Tokyo researchers examined the effect of body mass index (BMI) -- a standard measure of obesity -- on colorectal cancer risk. They also evaluated whether weight reduction lowered the risk of colorectal cancer.
In the first part of the study, the researchers analyzed colonoscopy results for nearly 9,000 patients with either no sign of colorectal tumors, or tumors that could be removed using endoscopy. People with the highest BMIs -- the most overweight -- were most likely to have colorectal tumors.
Obesity Ups Risk for Colon, Throat Cancers
