Regular exercise could decrease the risk of which of these diseases? -Type I diabetes. (<span>during a physical exercise, a significant amount of sugar is burnt by the muscle, the action of insulin is improved<span>.) </span></span> -Colon cancer
(<span>The practice of regular physical activity helps reduce the risk of developing several cancers:
Stephan is doing a school report on cities with high amounts of air pollution. Which of the following diseases should he focus on in his description of possible effects of air pollution?