In the same way that the brain cannot work without the executive functions in place, it also cannot work if it is drowning in stress hormones. The cold, hard scientific facts are that your people think better when they are not stressed, afraid, or depressed. Yet many leaders do not put a lot of thought into creating a positive emotional climate for their people, and sometimes they create the exact opposite. As a result of their leadership, they create stress, fear, and sometimes even depression.