People have been looking for the proverbial "fountain of youth" for ages. I agree with everyone else. A few more years living as a starved skeleton isn't worth it when I can enjoy my life (however long that may be) to the full and not have to live it in a constant state of starvation and discomfort. These people are so afraid of death that now they've become afraid to really live as well!
Okay...they've discovered that free radicals speed aging. Do they realize that sugar produces more free radicals in their bodies than most other foods on the planet? There are certainly better (and less self-abusive) ways of combating the effects of free radicals than starving yourself.