Hydration habits can vary significantly based on physical activity levels. Individuals engaging in high-intensity or prolonged exercise generally require increased fluid intake to replace fluids lost through sweat. Inadequate hydration can impair performance, leading to decreased endurance and potential heat-related illnesses. Conversely, those with a sedentary lifestyle may have lower hydration needs but should still prioritize adequate fluid intake for health. Factors like environmental conditions and body composition also influence hydration requirements. Overall, understanding personalized hydration strategies is essential for optimal health and performance, regardless of activity levels.