A comment heard from several friends: "Why save for retirement? One large medical expense can wipe out years of savings. You're better off enjoying life and spending what you earn while you can."
Edit - sibling poster pointed out that personal savings in approved retirement savings plans/schemes would not be put at risk for medical debts, which makes sense. The problem however with the folks described in this story is that a substantial amount of people _don't_ actually do this - they either have not saved anything, or their savings were in other forms (real estate, etc) which have been eroded/lost.
Parent poster is commenting on the general expense of medicine, but for your typical retiree, it shouldn't be too out of control with Medicare.
Your medical expenses should be a part of your retirement savings.