In the simplest terms, euthymia refers to the state of life which is characterized by the absence of mood disturbances.  It has a common association with bipolar mood disorder. When someone is in a euthymia state, they experience feelings of cheerfulness, happiness, joy, and tranquillity. As their state of mind is not influenced by the varied shades of mood, such people tend to display an increased level of resilience to stress.  These people can remain calm and composed, in the face of stress and think aloud about their values, perceptions, and evaluations. They do not fear nor depend on other people’s validation to prove themselves and their lives.