Your two kidneys filter and clean the blood by removing toxic chemicals like the heart, the kidneys are at work every second of every day, producing a continuous flow of clean blood.
As blood circulates it picks up waste substances produced by the body’s cells. These would poison you if they were not removed from the body. The kidneys extract the toxins and excess water from the blood and process them to make urine. As well as cleaning the blood, the kidneys also release hormones, stimulate red blood cell production and keep the body’s water content balanced.
They release more urine if you have drunk a lot and less if you are dehydrated.
Picture Credit : Google