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Noncommunicable diseases (NCDs) pose the greatest problem for the health of nations in the 21st century. They are primarily cardiovascular diseases, cancers, chronic respiratory diseases, obesity and diabetes, and contribute to almost two-thirds of all deaths worldwide. The cost both in terms of human suffering and money is enormous for diseases, which are largely preventable. If the major risk factors for noncommunicable diseases were eliminated, around three-quarters of heart disease, stroke, and type 2 diabetes and 40% of cancer would be prevented.