Water is everywhere—but why do we actually need to drink it to survive? In this episode, we break down the science of hydration and explain the vital roles water plays in the human body. From regulating body temperature and transporting nutrients to supporting brain function and cellular chemistry, water is at the center of nearly every biological process. We’ll also explore what happens when you don’t drink enough, how hydration needs vary by age and activity, and common myths about water intake. A clear, science-backed look at why water isn’t just refreshing—it’s essential for life.

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