What is meant by drink plenty of clean water?

"Drink plenty of clean water" means to consume an adequate amount of safe and uncontaminated water daily to maintain hydration and support overall health. Clean water is free from harmful substances, pathogens, and pollutants, ensuring it is safe for drinking. Adequate hydration is essential for bodily functions, including digestion, circulation, and temperature regulation. Drinking sufficient clean water can also help prevent dehydration and its associated health issues.