suicidal default 101

It's one of those mornings. So many thoughts have been swimming around in my head that I'd like to write about but I just can't find the time. Plus I am a bit unorganized and chaotic...
And today when I feel such a pressing desire to write I can't think of the things that I really wanted to write about anyway.
So I'll just start writing.
...The other day I was chatting (on-line) with an old high school friend. Conversation came around to my mentioning that my brother had died of a mental illness (I still don't know how I feel about that term). The friend asked "how's that?"
Now I was chatting online which means I could not really read the question or the friends understanding of what I had just said, but the particular wording later got me thinking.
"How's that"
I think that it is likely what many don't know or understand that a mental illness or even disorders can be fatal, can actually be the cause of death.
Totally a hard concept to wrap ones brain around.
But when I think of my friends from high school who lost their dad in a very dramatic and tragic suicide. When I think of my friend who I worked with when my brother died and her dad that committed suicide when she was very young. And especially when I think about my brother I know that though technically it was their own hand that would have been the cause of death that their physical chemistry was the cause more then anything else.

My brother was a good person (and the other two men mentioned). He loved life even though he despised it. He was loving, kind and generous. He was so fun and very intelligent. But he had a suicidal default that is not "normal" and, just like a cancer that is not being treated, can only be fought for so long. We don't know who gives up and who gives into death when fighting an illness but many die from things that are not considered major or serious illness's, while some "fight" for a lifetime (or what we culturally and socially accept as a lifetime and a fight).
However in such cases chemistry/physiology over whelm either the body or the soul or both and it is time to let go. In a sense Pain trumps. And with a suicidal default (I believe I have previously written  a definition to that self coined term) one can easily commit a fatal offense with out really meaning to "kill them self."

Here is one silly little simple personal example that I can give (and I may have given before) about how an out of whack chemistry that seems to cause said default can cause a fatality.
Once, just a couple of years ago, I was driving along the freeway while my beautiful little mind was racing through my newest brilliant life plan. But it was not just formulating a plan of how to achieve a goal that my mind insisted on working through but imagining the course of my whole life in addition. When I got to the end, which took a matter of seconds to maybe a couple of minutes at the most (racing minds work quick), BAM I was done and slamming my high speed car into the cement barriers on the side of the freeway was a flash that was almost overwhelming in the quickness and intensity of such a delusion.
I didn't, but I have experienced varying degrees of intensity and dellusion (I am sure most people have really), but had my chemistry been that much more off I could have easily and instinctively responded to the demand before I realized what I was doing and where I really was.
I was not down and there are many fortunate things to my situation but a suicidal default is something that can over ride the sensible systems and truly has to be attributed to a screwed up chemistry. Because, seriously, it is just stupid to think that under a healthy and properly functioning brain chemistry my body and mind would do that to me. Wait, they don't, when I am on an even keel. Which as of recent, has once again, had to be achieved with the assistance from the miracles of modern medicine. But I do know first hand the reality of the chemical difference.

Long post, I know, and I don't know that it makes any sense at all but I suppose I occasionally feel the need to defend my brother because we all knew (he had even promised us) that despite his intense and prolonged struggles with a suicidal default he would never do that.
P.S.
I don't think we realized how intense his struggle really was until he passed and then read his journal. There, it is very apparent that it was not just depression or a fascination with death but a default and a constant struggle, likely the only thing that made any real sense to him.