That means that during the next four years, we will learn as much about medicine as was discovered from the beginning of human existence until now. I usually began my Life Extension Seminars by passing around a printed copy of the Index Medicus , the index of most of the medical research reports published in the world for any particular month. The information in the Life Extension Manual is derived from information in those research reports that you don't usually hear much about. The decision whether, and to what extent, to personally make use of information about life extension is a difficult one. While there is an abundance of data pointing to the benefit of, for example, the regular use of melatonin, there is also an abundance of unanswered questions.
Science is the one successful method that has been developed for managing uncertainty.
Knowledge and certainty are mutually exclusive. Certainty is a myth of unscientific worldviews. The Life Extension Manual will be revised and updated frequently. I realize that some sections are inadequately referenced to the primary medical literature. This, too, will be remedied over the coming months.