Mine is a two part story. My cat Boo, kept biting an area by my shoulder and was very aggressive about it. Not having eyes in the back of my head I could not see what he was biting at. I went to the dermatologist and it was a malignant melanoma. He saved my life. The second part of my story is that I have been active in rescue for over 30 years. My specialty is senior cats. I have Anylosing Spondilitis and they are my motivation to move in spite of pain. I called my my cat litter aerobics that I have to bend and scoop. Having their care as a purpose keeps me physically active.