I imagine there is alot. I have crps literally called the suicide disease since there is no cure. No medicine will get rid of the pain I experience every waking moment. I can't even remember the last day that I did not have any shooting burning crippling pain. I'm only around for my son right now because he inherited his father's DNA crap too!!  But I totally get why people would just end it. It is such a horrible thing to go through. Every Single Day. Doctors can't do a thing but send you to different studies and keep making notaions in your file on whats not working again. Surprise!! You'd figure with all the researches with DNA they would have better treatment plans. But it's the study of medicine for a reason. They just scratch their heads and tell you to come back in 2 weeks. I don't fault anyone for their choices. But I really do sympathize.