Improper sleeping postures can lead to a buildup of brain waste that influences cognitive decline.
He cognitive impairment It is a reality that affects everyone to a greater or lesser extent as the years go by. Various studies and experts in neurology have shown that the position we choose to sleep in is a key factor that should be taken into account to take care of the brain and prevent deterioration.
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According to studies, the sleeping posture affects sleep quality and has a major impact on the brain’s ability to stay healthy over time.


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What is the best position to sleep?
Chris Allen, Aeroflow Sleep scientific advisor and pediatric neurologist, noted that sleep on sideparticularly on the left side, is especially beneficial for cognitive health.
In addition, sleeping on your side contributes to sleep apnea, a mechanism that interrupts breathing and decreases oxygen supply to the brain, which is linked to cognitive decline, Allen says.
How our sleeping posture influences the elimination of brain waste
Steve Laureys, neurologist and neuroscientist, noted that several investigations have shown that Sleeping on your side can improve the elimination of brain waste by 25% compared to other positions.
This sleeping position influences blood flow and cerebrospinal fluid, thus facilitating the clearance of brain waste. In addition, Laureys stresses that sleeping on your side could promote brain detoxification and reduce the risk of cognitive decline.
What are the least favorable positions for sleeping?
Sleep on your back
- Increases the risk of obstructive sleep apnea.
- It negatively impacts sleep quality and cognitive function.
- A 2023 study in Sleep Advances found a link between sleeping on your back and cognitive diseases such as Alzheimer’s and Parkinson’s.
Sleeping on your stomach
- It can cause tension in the neck and spine.
- It is less effective at removing brain waste.
Source: Ambito

I am an author and journalist who has worked in the entertainment industry for over a decade. I currently work as a news editor at a major news website, and my focus is on covering the latest trends in entertainment. I also write occasional pieces for other outlets, and have authored two books about the entertainment industry.