Alzheimer's research links egg consumption and sleep patterns to disease risk

Recent scientific studies have identified potential dietary and lifestyle factors linked to Alzheimer's disease risk.

A study published in The Journal of Nutrition, from the American Society for Nutrition, found that consuming eggs five or more times per week is associated with a 27% reduction in the risk of an Alzheimer's diagnosis. The research, which tracked nearly 40,000 participants over an average of 15.3 years, noted that even lower frequencies of consumption—such as one to three times per month—were linked to a 17% lower risk. Experts suggest that choline, a nutrient found in egg yolks that serves as a precursor to the neurotransmitter acetylcholine, may play a key role in this association.

Separately, research from UT Health San Antonio published in Alzheimer’s & Dementia suggests a link between prolonged sleep and higher levels of p-tau181, a blood-detectable protein marker for Alzheimer's. Analyzing data from the Framingham Heart Study, researchers found that habitual sleep durations between 8.5 and 9 hours, and especially those exceeding 10 hours, were associated with elevated levels of this protein. Researchers noted that while these findings indicate a correlation, they do not yet prove that excessive sleep causes neurodegeneration, but rather may reflect early-stage processes.