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Every day, your kidneys process approximately 180 liters of blood plasma. They filter out waste and excess fluids, removing toxins and substances the body doesn't need. At the same time, they retain essential water and nutrients. To understand the miracle of this organ, think about how many different types of liquids you drink daily. Water, soda, tea, coffee, milk, and juice. They all share some components, but they differ in others. Some have fats, some have sugar, minerals, proteins, or caffeine. Take all these liquids and mix them well together. Then imagine I ask you to separate all these materials and filter them one by one. Keep what is good, and throw away what is bad. The process is impossible. Yet, this is exactly what your kidneys do. When you drink something, its components mix directly with your blood once they leave the stomach. If they stayed in your blood like that, you would die. Because these materials contain things that are harmful to your body. Waste that must be removed. This is the role of the kidneys. A single kidney contains about a million tiny filtration units called nephrons. And these are the ones that do the main work. A million nephrons. Each one of those millions contains a delicate cluster of blood capillaries that we call the glomerulus. And here is where the real filtration begins. From what you drank and what mixed with your blood, they extract glucose, minerals, and water, and reabsorb them to return to the blood. As for the waste and excess materials, they are converted into urine. And here, the kidneys don't just stop at filtering blood. They also help regulate blood pressure and maintain a balance of salts and minerals. They also produce important hormones that help the body produce red blood cells. These are the cells that carry oxygen to all the body's organs. These kidneys work constantly, day and night, without stopping. Whether awake or asleep, they clean your blood at every moment. They regulate fluids and maintain the body's internal balance. A simple malfunction in this would cause your blood to be constantly contaminated. The kidneys clean your blood. Their health starts with every single drop of water you choose to drink.