Obesity, biggest cause of cancer

Researchers have warned that obesity will become the biggest cause of cancer in women in 10 years.

There is already one of 12 new cases of disease associated with being overweight or obese and this measure is set to increase smoking cessation and stopping hormone replacement therapy.

Dr Andrew Renehan, a cancer expert at the University of Manchester, said: "Obesity is being moved to a level which makes it the largest cause related to cancer in women in 10 years."

In men, 3.2% of breast cancer was associated with being overweight or obese and 8.6% in women.

Colorectal cancer, breast cancer in postmenopausal women, and cancer endometrikal counted 65% of all cancer related to obesity.

Dr Renehan, from the University of Manchester, said: "I must emphasize we are not trying to make a sensation about this. All of this is a very conservative estimate, and the possibility of such numbers, in fact, higher."

This may be related to the interaction between smoking, alcohol, excess weight, and condition called back with acid drainage, but further research is necessary to understand it cause.

Scientists are not sure why obesity may increase cancer risk, but suspected it was related to hormones. As people put on weight, they produce more hormones such as estrogen that helps tumors grow. People who have a distended abdomen also has more acid in the stomach, which can trigger cancer of the stomach, intestine, or esopagus.

Dr Renehan said the new strategy is needed to help people stay slim. "We need to find a biological mechanism to help people find other ways to overcome obesity," he said. "Just telling people to lose weight certainly did not succeed."