The kidneys and the heart are closely connected. Although they perform different jobs, they rely on each other to keep the body healthy. The kidneys filter waste, remove extra fluid, and help control ...

Filtering waste is only part of the job, a nephrologist says.

Your kidneys—those fist-sized organs tucked against your back muscles—perform over a dozen vital functions that keep you alive every moment of every day. These remarkable filtration systems process ...

A high creatinine result can be a clue that the kidneys are not filtering blood as well as they should. But the number alone ...

Our kidneys do a tremendous amount of work. Every day, they filter about 150 quarts of blood, cleaning it of waste, toxins and extra water. They regulate how much fluid is in the body and balance our ...