Obesity does not cause cancer.
The Wall Street Journal reports:
Several cancers linked to obesity and a sedentary lifestyle rose every year from 1999 through 2008, even as improved screening and a sharp decline in the number of smokers have helped push down the rate of new cancer diagnoses overall across the U.S., according to a report released Wednesday.
Rates of cancers of the kidney, pancreas, lower esophagus and uterus increased annually through 2008, the latest data available, according to the Annual Report to the Nation on the Status of Cancer. Rates of breast cancer in women at least 50 years old declined 1.3% annually from 1999 to 2005 but rose slightly between 2005 and 2008.
The data add to a growing body of evidence that obesity raises the risk of these and some other cancers. As many as one-third of common cancers in industrialized nations are linked to excess weight and lack of physical activity, according to the International Agency for Research on Cancer. Obesity rates leveled off in the U.S. a decade ago, but an estimated 68.8% of adults remain overweight or obese, according to the CDC, and cancers can take years to develop…