The Pits and the PendulumSpending a week doing nothing but exploring the possibilities of Lego, thereby risking yet another job; impulsively sinking all his savings into wildly impractical self employment ventures; sleepless nights, gripped by the need to write these are just some manifestations of the often damaging periods of manic, uninhibited energy Brian Adams has experienced since his mid twenties. But as a sufferer of bipolar disorder (also known as manic depression),