Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. It affects how you think, feel, and behave and can lead to a variety of emotional and physical problems. You may have depression if you have five or more of the following symptoms for at least two weeks: feeling sad or hopeless almost every day, losing interest in activities you once enjoyed, having problems sleeping or eating, feeling tired all the time, feeling restless or irritable, thinking about suicide, and experiencing pain or physical problems that don’t seem to have an obvious cause. If you are experiencing these symptoms, it’s important to seek professional help. Depression is a treatable condition, and with the right treatment, you can improve your mood and regain your enjoyment of life.