Meet Cinderblock the overweight rescue cat. Cinderblock aka Cinder, now lives at the Northshore Vet Hospital. They are chronicling Cinder’s weight loss journey on YouTube. Cinder has to exercise on an underwater treadmill because she has arthritis in multiple joints. She is also carrying an extra 10lbs of body weight. In one video Cinder is sitting in a corner of the treadmill only moving one paw on the treadmill while meowing in protest.