Approximately a third of American adults are classed as obese and numbers are increasing. Although there is a known link between cancer and obesity, the American Institute for Cancer Research has published an alarming analysis revealing the levels of cancer cases being directly linked to excess weight.
33,000 cases of breast cancer and linked to obesity; 20,700 cases of endometrial cancer; 13,900 kidney cancer cases, with 13,200 being colorectal cancers, 11,900 pancreas; 5,800 esophagus and 2,000 cases of gall bladder cancer; all linked with obesity and its related problems.
41,000 new cancer cases in the US in 2002 were attributed directly to obesity and Michael Thun, emeritus Vice President of Epidemiological Research of the American Cancer Society, notes that other cancers are suspected to be linked with cancer but are yet to be confirmed, such as multiple myeloma; liver and some strains of leukaemia. Obese people who weigh in at 30 pounds or more in excess bulk are in a much higher risk group for heart disease and other weight related diseases such as Diabetes.The National Cancer Institute notes that lack of exercise and obesity account for up to 30% of breast, colon and endometrial, kidney and esophagal cancer.
Also, acid reflux, which is related to esophagus cancer, is more often found to be associated with those who are overweight and cancer.
Cancer has also been found to be closely associated with insulin resistance and insulin. Higher levels are found in obese people: cell division is stimulated by insulin and cancer is the penalty of cellular growth that is not under control.
Obesity is caused by consuming too much high calorie, high fat and low nutrition food, combined with a lack of exercise and generally leading a sedentary life. The increased risk of cancer can be significantly reduced by adhering to a controlled and well balanced diet, getting the right amount of exercise each day and generally improving quality of life.
For those who are not overweight and do not wish to be, controlling diet and exercise is an excellent preventative measure to limit the risks of contracting cancer. Certainly exercise reduces the risk of developing cancers of the colon and breast. Anyone who is having difficulty maintaining a normal weight or sticking to a balanced diet should seek professional medical help and advice for a personalized weight loss program.