At least 65 million Americans, or 31.3% of the adult population, have high blood pressure, according to a report in the online journal of Hypertension. That's up from about 50 million people a decade ago, representing 28.9% of the nation's adult population at the time. Researchers attributed the growth to an aging and increasingly obese population, as well as simple population growth. The study used data from federal National Health and Nutrition Examination surveys. A second study underscores the negative health effects of being overweight. According to the August Nature Reviews Cancer, obese and overweight people are more likely to develop specific types of cancer, including breast, colon, kidney, pancreas and gallbladder. The article said levels of insulin and estrogen may play a role and called for more research. Read the Hypertension abstract and a summary of the Cancer report. -- by Joseph Mantone
More Americans have high blood pressure: study
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