08/29/2026
Your Sleep May Be Hiding An Early Clue To Alzheimer's Risk
Scientists at the University of Liège studied sleep in more than 500 healthy people, most in their 20s and some in their 50s and 60s. Everyone was symptom-free.
In the middle-aged group, people with a higher genetic risk for Alzheimer's had more micro-awakenings, brief moments of brain activity that do not fully wake you but can fragment sleep. No such link showed up in younger adults.
"These micro-awakenings are not insignificant," said researcher Puneet Talwar. "Certain profiles could promote the accumulation of proteins involved in Alzheimer's disease."
Important: genetic risk is still low and cannot predict who gets Alzheimer's. This is one study, and sleep is not a diagnosis. But it hints sleep patterns might one day help flag risk years before memory symptoms start. 🧠😴
Source: University of Liège / journal Sleep, 2026
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