A study published in JAMA Neurology reports that participants with evidence of preclinical Alzheimer's experienced worse sleep efficiency than those with no evidence of potential Alzheimer’s. One hundred forty five people between ages 45 and 75 took part in the study conducted by researchers at the Charles F. and Joanne Knight Alzheimer's Disease Research Center, Washington University School of Medicine. While none of the study participants had any cognitive concerns, once their spinal fluid was analyzed test results showed that about one-third of them were very likely to have Alzheimer's-linked Amyloid plaques in the brain. Amyloid plaques are generally considered to be a sign of preclinical Alzheimer's.
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