Overweight couch potatoes live a dangerous life: Epidemiologists estimate that about 80 percent of the most common diseases are linked to severe overweight and obesity and a sedentary lifestyle. Obese people are at an increased risk for cardiovascular diseases, vascular diseases, hypertension, diabetes and cancer. This lowers their life expectancy. Weight loss and physical activity help to counteract this. Women who lose weight lower their breast cancer risk. Regular physical activity lowers the risk of developing breast, colorectal and cervical cancers.



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