Sleep Time 'Sweet Spot' to Slow Cognitive Decline Identified?
Sleeping too much or too little can lead to cognitive decline over time, but new research suggests there could be a sleep time "sweet spot" that stabilizes cognitive function. In a longitudinal study, investigators found older adults who slept less than 4.5 hours or more than 6.5 hours a night reported significant cognitive decline over time, but cognitive scores for those with sleep duration in between that range remained stable.
@kunal Studies suggest a strong relationship between sleep patterns and Alzheimer's disease, which affects nearly 6 million Americans. The challenge, Lucey said, is unwinding the complex links between sleep, AD, and cognitive function. An earlier study by Lucey and colleagues found that poor sleep quality is associated with early signs of AD, and a report published in September found that elderly people who slept less than 6 hours a night had a greater burden of amyloid beta, a hallmark sign of AD.