Most people will experience symptoms of depression at some point in their life. This could be sadness due to grief, worthlessness due to the breakdown of a relationship, or anxiety due to job loss. However, for those diagnosed with depression, these experiences can be more severe and last far longer. The National Survey on Drug Use and Health 2020 identified that 21 million adults in the United States (8.4%) had at least one major depressive episode in the past year.