[mp3]

...

FREE RADICAL—a molecule that contains at least one unpaired electron. Free radicals (reactive oxygen species) are a byproduct of normal metabolism. They are highly reactive and bind with electrons from other molecules, potentially initiating chain reactions as successive molecules lose and gain electrons. The robbing of electrons by free radicals can disrupt normal cellular processes and cause cellular damage. [source]

FREE RADICAL—an atom or molecule having at least one unpaired electron: free radicals are usually reactive and unstable. (Neufeldt, Victoria. Webster's New World Dictionary of American English. Simon & Schuster Inc., New York: 1998).
 
This brief work is an auditory visualization of the line that one walks between living and dying.