7 Ways to Protect Your Kidneys From Rheumatoid Arthritis Man smashes suspected thief’s head with a heavy hammer till he passes on(VIDEO) The primary function of kidneys is to detoxify the blood, transform waste into urine, and help balance the salts and minerals in the body. The primary function of kidneys is to detoxify the … Continue reading 7 Ways to Protect Your Kidneys From Rheumatoid Arthritis