Research suggests deep sleep plays a crucial role in removing waste from the brain, similar to how our bodies flush out dirty dishes. The “glymphatic clearance” process helps eliminate toxic proteins linked to neurological disorders like Alzheimer’s disease.
Professor Maiken Nedergaard of the University of Rochester and the University of Copenhagen led the study, which found that a key neurotransmitter called norepinephrine triggers blood vessels to contract during deep sleep. This rhythmic flow helps carry away waste.
The researchers used mice to investigate how norepinephrine affects brain fluid flow and clearance. They discovered that norepinephrine waves correlate with variations in brain blood volume, suggesting a pump-like effect on the surrounding brain fluid.
The findings imply that sleeping pills like zolpidem may disrupt this process, potentially affecting cognitive function over time. The study suggests that people using these medications should be aware of the potential risks and make informed decisions about their sleep habits.
Furthermore, research suggests that a lack of sleep may weaken the brain’s defense against unwanted memories, allowing them to flood the mind. This highlights the importance of prioritizing good night’s sleep for overall brain health.
Source: https://www.foxnews.com/health/deep-sleep-can-keep-health-problems-bay-studies-suggest