(Credit: Rawpixel.com/Shutterstock) What would it be like to live forever? The thought has likely crossed your mind. But you soon sober up — it ain’t going to happen. Nevertheless, the idea of living longer than your parents and grandparents is not farfetched. Better lifestyles (such as exercising regularly and not smoking) and better medical care have helped increase longevity in developed countries. People who otherwise would have died in their 60s from age-related diseases are living into their 80s and 90s.