The human body is built for extraordinary endurance, even in extreme cases. The human body does not have a mechanism of self-destruction!
Those who view the gallery's (GALLERY) photos will comprehend how much the human body can withstand damage and recover completely. The human body does not have a self-destruct mechanism. The mind has self-defense mechanisms, sometimes seen as self-destruction but originating in self-defense. Suicide is a self-defense mechanism out of extraordinary mental (sometimes physical) pain. The starting point is always that people are built for survival.
By complying with fundamental requirements (mental & physical) — All chronic acquired (non-genetic) diseases are curable! All body organs, including the brain, have an incredible natural regenerative capacity! Provided we don't interrupt the process.