Well, there's still hope. Exercise!
By performing some form of physical activity everyday, our basal metabolic rate will increase. By having high metabolism, we're literally burning fat 24 hours a day. With a strong metabolism comes a strong immune system. When you burn fat, the toxins are released into the bloodstream, and are quickly carried out of the body through sweat. This inoculates you against the probability of developing cancerous and diseased cells. Therefore, hard exercise—that makes you sweat—is very good for you.
Picture tells a thousand words. I don't really like writing too much. Below are pictures of my grandma doing Tai Chi and also her Tai Chi mates. She's past 80, still strong and still driving.