<h3><em>☆</em><em>A mental health disorder characterised by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life</em></h3>
Depression (major depressive disorder) is a common and serious medical illness that negatively affects how you feel, the way you think and how you act. Fortunately, it is also treatable. Depression causes feelings of sadness and/or a loss of interest in activities you once enjoyed. It can lead to a variety of emotional and physical problems and can decrease your ability to function at work and at home.