👉 Fluids, which include water, blood, saliva, and other bodily liquids, play crucial roles in maintaining homeostasis and supporting various physiological functions. They help regulate body temperature through sweating and respiration, facilitate nutrient transport and waste removal, lubricate joints for smooth movement, and maintain the integrity of tissues and organs. Adequate fluid intake is essential for optimal health, as even mild dehydration can impair cognitive function, physical performance, and overall bodily processes.