Optimism comes from the Latin word optimus, meaning “best,” which describes how an optimistic person is always looking for the best in any situation and expecting good things to happen. Optimism is the tendency to believe, expect or hope that things will turn out well. Even if something bad happens, like the loss of a job, an optimist sees the silver lining. For me, getting laid off from office was the catalyst that allowed me to start my own business. Without that push, I may never have made the leap to self-employment. Losing my job was a good thing after all. The emerging field of positive psychology studies the positive impact that optimism has on mental health. Other research shows that optimism may be good for my physical health too—optimists are sick less and live longer than pessimists. Apparently, a positive outlook on life strengthens the immune system (and the body’s defenses against illness), cardiovascular system (optimists have fewer heart attacks), and the body’s ability to handle stress.