Very often, people use the word “depression” to explain sadness or normal downswings caused by life’s struggles, setbacks and disappointments, but depression is much more than mere sadness. Some have described it as “living in a black hole” or having a feeling of impending doom. Some people don’t feel sad at all. Instead, they may feel lifeless, empty, and apathetic, or may even feel angry, aggressive, and restless. Whatever the symptoms, depression is different from sadness in that it may engulf your day-to-day life, interfere with your ability to work, study, eat, sleep, and even enjoy fun moments. These feelings of helplessness, hopelessness, and worthlessness are intense and unrelenting, with little, if any, relief.