Your handwriting could reveal more than what you’re trying to say — it may offer clues about how your brain is aging.
THURSDAY, May 21, 2026 — Your handwriting could reveal more than what you're trying to say — it may offer clues about how your brain isResearchers in Portugal studied 58 adults, ages 62 to 92, living in care homes.
Thirty-eight had previously been diagnosed with a cognitive impairment. All were asked to use a digital pen and tablet to draw lines, copy sentences and write dictated phrases —under strict time limits. Simple pen-control exercises didn't distinguish participants with cognitive impairment from those without it. But dictation tasks did.
Seniors with cognitive impairment often took longer to begin writing, wrote more slowly and had more fragmentedThe researchers say dictation forces the brain to multitask — listening, processing language, converting sounds into written words and coordinating movement all at once. And as these systems decline, writing becomes less coordinated.
"Writing is not just a motor activity, it's a window into the brain," said senior author Ana Rita Matias, an assistant professor in the Department of Sport and Health at the University of Évora in Portugal. "We found that older adults with cognitive impairment displayed distinct patterns in the timing and organization of their handwriting movements," she said in a news release.
"Tasks involving higher cognitive demands showed that cognitive decline is reflected in how efficiently and coherently handwriting movements are organized over time. " Matias said simple writing tasks and low-cost digital tools could someday help monitor cognitive decline in routine healthcare settings like doctors' offices.
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