We’ve all had negative working experiences. Many offices are filled with unhealthy competition, our days peppered with manipulation and deceit in efforts to get ahead. So what makes for a healthy working environment? How do team leaders create positivity and productivity in equal amounts? There is a secret that some of the world’s top leaders know, one word that gets them further than anything else in their careers. Gratitude. Time and time again, studies have shown that it is not happy people who are thankful, but rather thankful people who become happy.