Life and Death (Yin and yang)

Does life and death go hand in hand?  What gives life, gives death and vice versa.  What form of death is necessary to be born again (sounds almost biblical)?

Here's an idea (not entirely thought through): How about introducing a virus that carries genetic information that mirrors the genetic information of the individual minus certain information to start a regression?  Then reintroduce the full genetic information at a desired age to kickstart the progression?  Finally, introduce a repeat cycle information.

-- Christie E.