Nighttime Micro Awakenings Linked to Alzheimer's Genetic Risk

A study of over 500 healthy participants published in the journal Sleep found that frequent nighttime micro awakenings are associated with higher genetic risk for Alzheimer's disease.

Researchers observed this correlation specifically in an older group aged 50 to 69, while no such link was detected among younger participants aged 18 to 31.

The study highlights the potential of the locus coeruleus, a brainstem region, as an early indicator for Alzheimer's, suggesting sleep measurements could eventually aid in early disease screening.