25 Signs and Symptoms of Alzheimer's Disease
Loss of initiative and motivation
If apathy, loss of interest in social activities and hobbies, and social withdrawal occur in the early or mid-stage of AD, they may be due to depression.
About 40% of people with AD also have depression. Unfortunately, identifying depression can be difficult, and the cognitive impairment makes it difficult for the person to articulate his or her feelings.
If a family member sleeps all the time or watches TV all day and refuses to do any other activities, she may have depression as well, and you should talk to her doctor.