Leaders work in highly stressful environments, yet few leadership development efforts have focused on managing work stress. We posit that self- and shared leadership practices can help leaders manage high job demands and increase long-term job control. We examine the effects of high-strain jobs; identify the outcomes of active jobs, and highlight physical fitness as a key strategy of, and flow as a natural outcome of self- and shared leadership. We argue that self- and shared leadership, and the consequent and entailed fitness and flow benefits, support healthful regeneration and increased engagement and are thus vital to the leader's ability to manage work stress and create an active work environment. Our multi-disciplinary model offers a proactive way for leaders to manage the stressful demands of today's work environments.