The implicit power motive is a nonconscious disposition to register impact on others as rewarding. In this talk, I will trace some of the hormonal and neural correlates of this disposition in humans. Specifically, I will review the evidence for a role of testosterone in male, and estradiol in female, power reward and reinforcement, highlight the role of stress hormone release in aroused and frustrated power motivation and their effects on the release of gonadal steroid hormones, present some brain correlates of aroused power motivation, and discuss their possible interactions with the endocrine system.