Is that really true? I mean, it might well be true that most people could live an extra 20 years with a suitable change of diet and lifestyle. But even if tha

Is that really true? I mean, it might well be true that most people could live an extra 20 years with a suitable change of diet and lifestyle. But even if that's the case, isn't everyone going to die of cancer or heart failure at the end of those extra 20 years?