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New study links too little or too much sleep to higher dementia risk.
A new study links both too little and too much sleep to higher dementia risk, with 7 to 8 hours nightly associated with the lowest risk.
Prolonged sitting and low physical activity also increased dementia likelihood, suggesting lifestyle factors like sleep, movement, and activity levels may help prevent or delay the disease, though causation was not proven.
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Un nuevo estudio relaciona dormir poco o demasiado con un mayor riesgo de demencia.