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Alzheimer's stages: How the disease progresses

Moderate dementia due to Alzheimer's disease

During the moderate dementia stage of Alzheimer's disease, people grow more confused and forgetful. They begin to need more help with daily activities and self-care.

People with the moderate dementia stage of Alzheimer's disease may:

  • Show increasingly poor judgment and deepening confusion. Individuals lose track of where they are, the day of the week or the season. They may confuse family members or close friends with one another or mistake strangers for family.

    They may wander, possibly in search of surroundings that feel more familiar. These behaviors make it unsafe to leave them on their own.

  • Experience even greater memory loss. People may forget details of their personal history, such as their address, phone number or where they attended school. They repeat favorite stories or make up stories to fill gaps in memory.
  • Need help with some daily activities. They may need help choosing proper clothing for the occasion or the weather. People in this stage also may need assistance with bathing, grooming, using the bathroom and other self-care. Some may occasionally lose control of their bladder or bowel movements.
  • Undergo significant changes in personality and behavior. It's not unusual for people in the moderate dementia stage to develop unfounded suspicions. For example, they might become convinced that friends, family or professional caregivers are stealing from them. Or they may accuse a spouse or partner of having an affair. Others may see or hear things that aren't really there.

    Individuals often grow restless or agitated, especially late in the day. Some people may have outbursts of aggressive physical behavior.