Bruce has wrestled with his moods, and a psyche genetically prone to extremes, for most of his adult life. Decades of psychotherapy helped reveal and cast light on some of his most primal traumas and conflicts, but his raw moods, and occasional descents into full-blown depression, never quite went away. "You go through periods of being good, then something stimulates it," he says. "The clock, some memory. You never know. The mind wants to link all your feelings to a cause. I'm feeling that because I'm doing this, or because that happened."Eventually Bruce realized that his worst moods had nothing to do with what was actually taking place in his life. Awful, stressful things could happen - conflicts, stress, disappointments, death - and he'd be unflappable. Then things would be peaceful and easy and he'd find himself on his knees. "You're going along fine, and then boom, it hits you. Things that just come from way down in the well. Completely noncasual, but it's part of your DNA, part of the way your body cycles."Bruce knows his particular brain chemistry will never leave him completely in the clear. "You manage it, you learn and evolve, but another recognition you gotta have is that these are the cards you were dealt," he says. "These things are never going to be out of your life. You gotta be constantly vigilant and realistic about these things.