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Now sleeping longer than 6.5 hours a night associated with cognitive decline

A Good Sleep

A Good Quality Sleep is more important than sleeping time

A good night’s sleep is important For many reasons. It helps our bodies repair and function on their own, and has been linked to better mental health and a lower risk of many Health Conditions – Including heart disease and diabetes. It has also been shown that not getting enough sleep is associated with cognitive decline and conditions like Alzheimer’s disease,

Ek acchi nind ke liye jyada der Sona jaruri nahin hota balki aap jitni der bhi sote hain vah kis condition mein sote Hain Kitna relax hokar sote Hain is per depend karta hai. Study ke mutabik 6.5 hrs se jyada cheen nind aapke liye Khatarnak sabit ho sakti hai isase aap aap aisi chijen loss kar sakte hain jis Jo aapse chupi hoti hai aur dheere dheere iska aasan dikhta hai.

But more is not always better, as a Recent study found, Researchers from Washington University School of Medicine have published a paper that suggests that just like getting too little sleep, sleeping too much may also be linked to cognitive decline.

The research team wanted to know how much sleep was associated with cognitive impairment over time. To do this, they looked at an average of 100 older adults in their mid-70s to early 70s, and tracked them between four and five years. At the time of their study, 88 people showed no signs of dementia, while 12 people showed signs of cognitive impairment (one with mild dementia and 11 with a pre-dementia stage of mild cognitive impairment).

Throughout the study, participants were asked to complete a series of general cognitive and neuropsychological tests to look for signs of cognitive decline or dementia. Their scores from these tests were combined into a single score, called the Preclinical Alzheimer’s Cognitive Composite (PACC) score. The higher the score, the better their knowledge over time.


The Study

The Washington University School of Medicine research team wanted to find out how sleep and cognitive impairment were related over time. As both poor sleep and Alzheimer’s disease are associated with cognitive decline, researchers selected older adults for their sample. For a period of 4 to 5 years, 100 participants were tracked in terms of cognitive function.

Alzheimer’s is the most common cause of cognitive decline among older people, accounting for 70% of cases of dementia. Furthermore, Insufficient sleep can make the disease worsePoor sleep is a common symptom.

Although separating out the effects of poor sleep and Alzheimer’s can be challenging, using this sample made the task more manageable. As reported on, SciTechDaily, “By tracking cognitive function in a large group of older adults over several years and analyzing it against levels of Alzheimer’s-related proteins and measures of brain activity during sleep, the researchers generated crucial data that help untangle the complicated relationship among sleep, Alzheimer’s, and cognitive function.”

The study’s beginning 88 participantsWhile 12 people with cognitive impairment showed no signs, none of them had dementia. One of the 12 participants with cognitive impairment had mild dementia while the 11 others had pre-dementia. Although only a few participants showed signs of dementia, all were asked to complete both cognitive and neuropsychological tests that carefully separated the effects of sleep from Alzheimer’s disease.

In this study, participants were asked to give blood samples for testing for the high-risk Alzheimer’s genetic variant APOE4. In addition, they also provided samples of cerebrospinal fluid to measure Alzheimer’s protein levels. A tiny EEG monitor was also attached to the participants’ foreheads for four or six nights to measure brain activity while they slept.

After analysing all data, scientists discovered that cognitive scores decreased for those who slept less then 4.5 hours. OderOver 6.5 hours of sleep per night. These results suggest that sleep quality may be more important than total sleep time.

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