问答题 Often misunderstood as a disease associated with affluent lifestyles, diabetes is a growing problem in developing countries. Recognizing that non-communicable diseases constitute one of the major challenges for development in the twenty-first century, the United Nations convened a high-level meeting on the issue in 2011. Governments committed to developing national policies for diabetes prevention, treatment and care. This commitment was reaffirmed two years later at the World Health Assembly, which set a target to stop the rise in obesity and diabetes by 2025. A second high-level United Nations meeting earlier this year recognized a marked increase in the number of countries with policies on non-communicable diseases.