Now either Shotgun Jesus is right on the money - in which case this deserves a nomination....
Edit: didn't see the posts after...lol
Or the disconnect is illustrated here...
Suicide is not HIV/Aids and is not Cancer.
There are illness of the mind just as potent and potentially lethal as illnesses of the body - and they both cause severe dysfunction of the affected area..
The brain is a complex machine, and no we don't have it figured all out - but this isn't an all or nothing proposition, we do know quite a bit about the function of different regions, the chemical makeup and neural patterns, and have observed and documented how chemical imbalances affect behaviors both conscience and unconscious.
One of those well documented areas deals with deficiency in
monoamine neurotransmitters, usually seratonin and dopamine, which have a measurable effect on the mental functioning of the individual in question. The mind does not exist independent of the brain, it is an emergent property of the chemical and neural interactions contained therein - and therefore wholly susceptible to any chemical or electrical imbalance. This dynamic is clearly observed in individuals suffering severe head trauma with subsequent dramatic personality changes.
The deficiency in said neurotransmitters is consistently present in individuals meeting the criteria for clinical depression, and consistently show changes to the behavior observed when taking (or not) a drug designed to target said transmitters, demonstrating a direct link between the amount of neurotransmitters available and the symptoms of clinical depression.
Compare this with diabetes - one could hardly say a person is cowardly because they fell into a diabetic coma - yet the lack of a required chemical caused a potentially lethal malfunction here as well.
Depression is a result of certain neural pathways being active while other pathways are inactive, pathways that are active in people who are lucky enough to have normal levels of serotonin and dopamine production.
Just as your body will malfunction with an excess or dearth of insulin, your mind will malfunction with a lack of neurotransmitters - neither is an act of will, nor may either be overcome by an exertion of the same.
If it is not a matter of choice, it cannot be an act of cowardice.