👉 Retain fluid, also known as interstitial fluid, is a vital component of the body's circulatory system. It fills the spaces between cells, tissues, and organs, making up about 20% of the total body water. This fluid acts as a medium for the transport of nutrients, oxygen, hormones, and waste products throughout the body. It also cushions and protects tissues from mechanical injury by acting as a shock absorber. The primary sources of retain fluid are the kidneys, which regulate its volume and composition through processes of filtration, reabsorption, and secretion. This dynamic fluid is essential for maintaining cellular function, homeostasis, and overall bodily health.
