Book: TRANSCEND by Ray Kurzweil and Terry Grossman, MD
Chapters 1-3 free online

Ray Kurzweil is a leading futurist and inventor, actively exploring "singularity" and related ideas. This book provides very interest view on health and aging, as well as some good advices.

The premise is that information technology is increasing its capability on exponential scale, doubling every year or two. This revolutionize many other fields, including health care.

There are very interesting "dialogs" with authors in "year 2034", that is 25 years in the future.

For example, on page 15 of chapter 1 (about brain and sleep) they talk about virtual reality by means of "nanobots" floating in bloodstream of brain...

There is also a description of a useful problem-solving technique while you sleep, starting on page 23...