Walking fewer than 5,000 steps a day nearly doubles your risk of dementia, stroke, or Parkinson's disease compared to those hitting 12,000+ steps, a new study finds. Researchers used a full year of fitness tracker data from over 22,000 adults in the NIH's All of Us program. Low activity was also closely tied to obesity, high blood pressure, diabetes, and depression.
Your fitness tracker might be doing more than counting calories. A new study presented at the American Neurological Association's 151st Annual Meeting found that adults averaging fewer than 5,000 steps per day had an 80% higher risk of developing dementia, Parkinson's disease, stroke, or a transient ischemic attack compared to those averaging over 12,000 steps daily. The research, led by Florida Atlantic University, is among the first to use a full year of objective wearable data — rather than self-reported activity — to examine these links in a large, diverse cohort.
The study tracked 22,517 adults aged 40 and older using data from the NIH's All of Us Research Program. While the raw risk difference was striking, the association became statistically non-significant after adjusting for factors like obesity, hypertension, diabetes, and depression — suggesting these conditions may partly explain the relationship. Notably, depression emerged as the single strongest predictor of neurological disease in the group.
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Why it matters: This study highlights how everyday wearable data could help clinicians identify patients at risk for neurological conditions well before a clinic visit — and underscores that physical activity, mental health, and cardiometabolic health should be assessed together, not in isolation.
