From that same article: "The facts prove that life in prison without the possibility of parole (LWOP) is swift, severe, and certain punishment. The reality is that people sentenced to LWOP have been condemned to die in prison and thats what happens: They die in prison of natural causes, just like the majority of people sentenced to death.
Prisoners condemned to die in prison are not given any special treatment and, in fact, have less access to programs than other prisoners. They are housed in high security facilities with few privileges, far away from any relatives, and in crowded group cells. Ironically, people on death row are provided much more comfortable single cells and sometimes gain celebrity and attention just by being there."