Similar symptoms

Some of the symptoms common to both Alzheimer's and depression include:

• Loss of interest in once-enjoyable activities and hobbies
• Social withdrawal
• Memory problems
• Sleeping too much or too little
• Impaired concentration

With so much overlap in symptoms, it can be hard to tell the difference between the two disorders, especially since they often occur together. A thorough physical exam and psychological evaluation can be helpful in making a diagnosis.

But, many people with more advanced Alzheimer's disease may not be able to express how they feel.