Depression is a feeling of sadness that lasts for a long time. It can make you lose interest in things and affect how you think and act. Depression can cause problems with your emotions and body. It might be hard to do everyday activities, and sometimes you might feel like life isn't worth it.

However, please keep in mind that depression is not just feeling sad for a short time.  It's also not something you can easily stop feeling. It may need treatment for a long time. But don't worry, medicine and/or therapy can help!

Source: Mayoclinic.org