"Emotional well-being is a term that has been used increasingly in recent decades. The implications of decreased emotional well-being are related to mental health concerns such as stress, depression, and anxiety. These in turn can contribute to physical ill-health such as digestive disorders, sleep disturbances, and general lack of energy. The profile of a person prone to emotional distress is usually someone with low self-esteem, pessimistic, very self-critical, and someone who needs to constantly assert themselves through their behavior. They also tend to be afraid, overly worried about the future, and focused on the past. On the positive side, enhanced emotional well-being is seen to contribute to upward spirals in increasing coping ability, self-esteem, performance and productivity at work, and even longevity."