I've often held that the most insidious part about clinical depression is its self-reinforcing nature. Deep clinical depression is throwing a person into a deep hole with thorns sticking out of the sides- every attempt to climb out of said hole results in swollen cuts and pain to the arms and body, rendering eventual escape more difficult with each struggle.
Eventually, it becomes like trying to climb out of said hole with no arms at all. It's one of my life goals to discover biochemical methods to help such people regain the use of their arms, or even essentially grow new ones.
I find articles like this one useful ONLY* insofar as they assist those who have gained use of their arms and cut away the brambles on the walls of the pit- for most others, it merely ends up encouraging more struggling, self-recriminations, and effectually a deepening of the hole. :(
