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Researchers have predicted that global cancer rates could increase by as much as 75 percent by 2030. Researchers from the International Agency for Research on Cancer and the American Cancer Society have estimated that the number of people affected by cancer in some of the world's poorest countries could grow by as much as 90 percent. That estimation is based largely on the growing rate of current health initiatives in third world countries to save people from diseases such as malaria and AIDS. Those people are now expected to live longer, increasing their risk of developing cancer, a disease for which aging is considered a risk factor. Rising smoking rates in countries like China also influenced the projections by researchers, though experts not affiliated with the study noted that making certain healthy lifestyle choices, including exercising, adhering to a healthy diet and choosing not to smoke, could reduce cancer rates in the future. The study, published in the journal Lancet Oncology in 2012, estimated that there will be more than 22 million new cases of cancer by 2030. By comparison, 2008 saw fewer than 13 million new cancer diagnoses.