We all have our anxious moments or times when we are depressed. It’s normal to feel these emotions when we are in stressful situations. Generally, this anxiety or depression goes away once conditions improve and life becomes less hectic again. For millions of people, however, anxiety or depression can drag on and on. It may get worse over time and might even start to interfere with their work, school, or relationships. When it reaches this point, it is likely that the person has an anxiety or mood disorder that requires treatment.