A meta-analysis of thirteen studies found that people with obstructive sleep apnea had higher total amyloid and tau in blood and lower amyloid in spinal fluid than people without it, but certainty was low and the pattern didn't match established…
A study of 735 people across the Alzheimer's spectrum, published in October 2026 in Alzheimer's & Dementia, found that the link between shorter sleep and more white matter damage was stronger when people also had other signs of blood vessel…
A study of sixty-four cognitively healthy older adults, published in October 2026 in Alzheimer's & Dementia, found that a low share of REM sleep was linked to a faster drop in a blood marker that signals amyloid buildup over about…