When you do a clean restore on your computer, you restore the initial factory settings. You wipe the slate clean of all the junk - unnecessary programs, spyware, and viruses that have accumulated along the way. The result is a clean, lean machine that runs faster and works much better.

Extending the connectivity metaphor, is it possible to do a clean restore on your body? In one sense, definitely not. You'd first need to backup all the things that make you who you are - the things you've learned, your experiences, your personality. The cells of your body retain these sorts of memories, too, and your environmental experiences have a significant impact on your DNA. In another sense, though, it is possible to do a clean restore, on a cell-by-cell basis. Your body's cells are constantly renewing themselves, doing their own versions of a clean restore. If you provide the appropriate inputs in the form of healthy, nutritious food, plenty of regular exercise, and sufficient rest, your new cells will be faster, smarter, and better than the ones they are replacing.