If you’re asking yourself, Do I have depression?, you’re not alone. Many people go through periods of sadness, low energy, or loss of motivation, and it can be hard to tell when those feelings may point to something more serious. Depression is more than simply having a bad day. It can affect your mood, thoughts, sleep, appetite, relationships, and ability to manage daily life. Recognizing the signs is an important first step toward understanding what you may be experiencing and deciding whether to seek help. This introduction explores the common symptoms of depression, how it may differ from temporary emotional struggles, and when professional support may be worth considering.