To be emotionally healthy you must express your emotions in healthy, assertive ways. If you inhibit your emotions and feelings you cannot achieve emotional health. This means an emotionally healthy person is assertive. Emotional Wellness Definition: Emotional health is on a continuum and fluctuates moment by moment.motional Health Definition: Emotional health is defined by the degree to which you feel emotionally secure and relaxed in everyday life. An emotionally healthy person has a relaxed body, an open mind and an open heart. The more emotional health you have, the more self-esteem you have.