This was the second monograph that discussed fun and pleasure and the price you might pay if you succombed to "creative poisoning".

Opening passage:

Psychic exhaustion is a uniquely human phenomenon, related to those creative capacities which arise from the nature of civilization itself. Exhaustion differs from fatigue in that it tends to undermine the ability to rest. Healthy fatigue invites rest and preserves its refreshing and restorative function. Exhaustion undermines mental health. In this state the individual loses awareness and control of his own mental processes. His actions become pressured and driven in an automatic way, as if his sense of self has been given up in favor of becoming the agent of monolithic forces which he cannot influence or alter