Water makes up about 60% of the human body, and staying hydrated is crucial for nearly every bodily function—from digestion to circulation to temperature regulation.

Dehydration can lead to headaches, fatigue, poor concentration, and even kidney issues. Whether you’re at work or the gym, sipping water throughout the day helps keep your body running smoothly.

Quick tip: Carry a reusable water bottle and aim for at least 8 glasses a day—more if you’re active or it’s hot outside.