10/28/2026
Dementia is more than memory loss. It can affect judgment, communication, behavior, mobility, and eventually the ability to perform everyday activities.
The 7-stage model, known as the Global Deterioration Scale (GDS), is commonly used to describe progression in Alzheimer's disease. Other types of dementia may progress differently.
1. No Cognitive Decline /Normal functioning
No noticeable memory problems or changes in thinking.
2. Very Mild Cognitive Decline/ Occasional forgetfulness
Misplacing keys, forgetting names, or losing track of familiar words. These changes can occur with normal aging.
3. Mild Cognitive Decline Early changes become noticeable
Difficulty organizing tasks, remembering appointments, finding words, or managing complex responsibilities.
4. Moderate Cognitive Decline /Mild dementia
Trouble managing finances, medications, cooking, or planning activities. Increasing support may be necessary.
5. Moderately Severe Cognitive Decline Moderate dementia
May forget important personal information, become confused about time or place, and need help choosing appropriate clothing.
6. Severe Cognitive Decline /Moderately severe dementia
May need help bathing, dressing, and toileting. Changes in sleep, personality, and behavior may become more significant.
7. Very Severe Cognitive Decline /Severe dementia Significant loss of speech and independence. May lose the ability to walk, sit unsupported, or swallow safely, requiring extensive care.
Important: Stages 1–3 do not necessarily mean someone has dementia. The stages are a general guide, not a precise timeline or diagnosis. People can experience overlapping symptoms, and progression varies.
What caregivers should understand
A diagnosis doesn't tell you exactly how much time you have or how quickly changes will occur.
At Start Smart Plus, I'd emphasize three things:
- Plan early: Discuss power of attorney, healthcare wishes, finances, and future care before decision-making becomes difficult.
- Watch for changes: Increased confusion, wandering, medication mistakes, and difficulty with daily tasks can signal a need for additional support.
- Adapt the care plan: What worked six months ago may not work today.
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