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b'This session will review the many causes of cognitive impairment and provide detailed information about several of these causes, including early malnutrition, iron deficiency, diarrheal diseases, and prenatal alcohol exposure. The session will discuss the demographics of cognitive impairment and the negative effects on individuals, families, communities, economics and governments. The session will provide a proposal for establishing "Cognitive Watches" in countries to identify most common causes of cognitive impairment and to prevent these causes.'