It’s Monday morning, and Michael, a senior executive at a global telecommunications company, faces the week utterly exhausted. Only 38, he’s been a high-level leader with the firm for more than a decade. Once, he was a wunderkind, an “energizer” on the fast track to become the company’s youngest-ever CEO. But those days are over.… Continue reading Nine Brain-Aging “Sins” That Kill Your Competitive Edge