One of the reasons that mortality rates for cancer has declined dramatically is that many more cancers are diagnosed today that wouldn’t have been diagnosed 40 years ago. Many of those cancers would have gone away on their own. http://www.nejm.org/doi/full/10.1056/NEJMoa1206809
The best way to improve health and reduce health care expenses is to eat right and exercise.
In the not too distant future, stem cells will be used to replace anything that breaks and genomics may be used to better target diseases with the right treatment.
