What disorder characterized by weight changes difficulty concentrating and sleep disturbances?

The disorder characterized by weight changes, difficulty concentrating, and sleep disturbances is often Major Depressive Disorder (MDD). Individuals with MDD may experience significant fluctuations in appetite and weight, trouble focusing on tasks, and disruptions in their sleep patterns, such as insomnia or hypersomnia. These symptoms can severely impact daily functioning and quality of life. It's important for those experiencing these symptoms to seek professional help for proper diagnosis and treatment.