Dr. Mark Savant: Hi, I'm Dr. Mark Savant and welcome to Savant MD. Today's wellness tip is about your kidneys. Your kidneys are vital organs and you can't survive without them. They keep a hospitable environment in your body, so that all your other can function properly. They do this in a three ways. To find out watch doctor Dr. Chang's video Kidneys 101 on savantmd.com. I'm Dr. Mark Savant, be well.