Health4TheWorld welcomes Dr. Sana Syed to discuss pediatric diarrheal illnesses. She begins this topic by providing a historical background about diarrhea globally and the current epidemiology. The Dr. Syed discusses the interplay between malnutrition and diarrhea before diving into an explanation of the basis for oral rehydration. Dr. Syed concludes her lecture with the an outlook of diarrhea in the future and what key points she hopes healthcare workers and patients can take from her lecture.