What has the World Health Organization declared as one of the most serious public health challenges of the 21st century?

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The World Health Organization has declared childhood obesity as one of the most serious public health challenges of the 21st century due to its significant impact on both physical and mental health outcomes. Childhood obesity increases the risk of developing chronic conditions such as diabetes, heart disease, and certain cancers, and can also lead to emotional and psychological problems.

What Has the World Health Organization Declared as One of the Most