The Dementia Signs That Don't Look Like Dementia

Most people know to watch for memory loss. A forgotten name. A repeated question. The car keys in the refrigerator. Those signs, when they arrive, are hard to miss. But here's what catches families off guard: dementia often announces itself differently. In mood, not memory. In personality, not recall. The earliest symptoms can look like depression, or anxiety, or just a bad stretch. You attribute them to aging, or stress, or retirement, or grief, or the weather. By the time the memory problems become undeniable, months or years of earlier signals have been explained away.

Why does this matter more now than it did five years ago? Because treatment options have changed. Lecanemab (marketed as Leqembi), approved by the FDA in 2023, can slow the progression of early Alzheimer's disease by roughly 27% over 18 months. But the research is clear: it works best in the earliest stages. The window for intervention is real, and it's narrow. What you notice now determines what treatment options exist later.

The Signs to Watch

What to Do With What You Notice

The Cost of Waiting

Sources

1. U.S. Food and Drug Administration. FDA Grants Approval for Lecanemab (Leqembi). 2023.
2. van Dyck CH, et al. Lecanemab in Early Alzheimer's Disease. New England Journal of Medicine, 2023.
3. Alzheimer's Association. 10 Early Signs and Symptoms of Alzheimer's.
4. National Institute on Aging. What Are the Signs of Alzheimer's Disease?
5. Ismail Z, et al. Neuropsychiatric Symptoms as Early Manifestations of Emergent Dementia. Frontiers in Psychiatry, 2020.
6. AARP. Surprising Dementia Symptoms That Have Nothing to Do with Memory.

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