Quick Check
Normal Aging: Forgetting names of acquaintances, finding the right word, or misplacing glasses (but finding them later).
See a Doctor: Getting lost in your own neighborhood, forgetting how to do routine tasks (paying bills, cooking), or personality changes.
Normal vs. Not Normal
Normal Aging
- • Forgetting names but remembering them later.
- • Occasionally making a bad decision.
- • Missing a monthly payment.
- • Forgetting which day it is and remembering later.
Potential Dementia
- • Asking the same questions over and over.
- • Consistently poor judgment (money, safety).
- • Difficulty completing familiar tasks.
- • Losing track of dates or seasons entirely.
Reversible Causes of Memory Loss
Not all memory loss is permanent. Many common issues can cause "brain fog" or forgetfulness that looks like dementia but is curable:
- Vitamin B12 Deficiency
- Thyroid problems (Hypothyroidism)
- Side effects of medication
- Dehydration or poor nutrition
- Anxiety, stress, or depression
- Sleep apnea / Lack of sleep
Medical Review
Reviewed by: Ricardo Hamilton, MD
Last Updated: December 15, 2025
Sources: National Institute on Aging, Alzheimer's Association