{"id":1955,"date":"2026-10-01T23:27:07","date_gmt":"2026-10-02T03:27:07","guid":{"rendered":"https:\/\/canasanta.ca\/?p=1955"},"modified":"2026-10-01T23:27:07","modified_gmt":"2026-10-02T03:27:07","slug":"the-brain-can-cleanse-itself-more-effectively-if-we-promote-sleep","status":"publish","type":"post","link":"https:\/\/canasanta.ca\/en\/al-dia\/el-cerebro-puede-limpiarse-mejor-si-estimulamos-el-sueno\/","title":{"rendered":"THE BRAIN CAN \u201cCLEAN ITSELF\u201d BETTER IF WE PROMOTE SLEEP"},"content":{"rendered":"

A good night's sleep does more than just rest the brain. It also appears to activate physical mechanisms that help move the fluid circulating around it, a process linked to the elimination of metabolic waste.<\/em><\/h3>\n

A new study of healthy people has shown that this movement can be enhanced noninvasively while we sleep.<\/p>\n

The researchers used auditory stimulation synchronized with the slow waves of deep sleep. While the participants slept inside an MRI scanner, a system detected those brain waves by EEG<\/em> and it played sounds at exactly the right moment to reinforce them.<\/p>\n

The result was clear: as slow waves increased, so did the flow of cerebrospinal fluid.<\/p>\n

 <\/p>\n

THE BRAIN MOVES WHILE WE SLEEP<\/h3>\n

During sleep NREM<\/em>, the brain generates large, slow waves of electrical activity. At the same time, blood flow changes, and cerebrospinal fluid moves in pulses through the nervous system. This fluid surrounds the brain and spinal cord and plays a role in important protective and waste-removal processes.<\/p>\n

New research shows that these two phenomena may be even more closely linked than previously thought. By artificially amplifying slow waves using sound, the researchers observed a synchronized increase in the movement of cerebrospinal fluid.<\/p>\n

 <\/p>\n

SOUNDS AT THE EXACT MOMENT<\/h3>\n

It wasn't simply a matter of playing music while the participants slept. The system used a closed-loop method: it detected the exact phase of the brain's slow waves in real time and delivered the auditory stimulus at that precise moment. When the sound coincided with the correct peak of the wave, the wave became more intense, and the flow of cerebrospinal fluid increased accordingly.<\/p>\n

The images also showed widespread changes in brain activity following stimulation.<\/p>\n

 <\/p>\n

COULD IT HELP FIGHT ALZHEIMER'S?<\/h3>\n

This is where the most interesting part begins, but it's also where we need to be cautious.<\/p>\n

Some neurodegenerative diseases are associated with the accumulation of proteins and other waste products in the brain. That is why scientists have been studying for years whether the brain's natural cleansing mechanisms during sleep might be related to diseases such as Alzheimer's<\/strong>.<\/p>\n

This study does not prove that inducing sleep cures or prevents any disease. What it does demonstrate is something more specific: the flow of cerebrospinal fluid can be modified from the outside using sounds synchronized with brain activity. That opens up a new possibility.<\/p>\n

If it is confirmed in the future that improving this flow actually helps eliminate harmful substances, a completely noninvasive way of intervening during sleep could be developed. There is still a lot of research to be done. But for the first time, we are beginning to see that while we sleep, we can do more than just observe how the brain works. Perhaps we can also help it function better.<\/p>","protected":false},"excerpt":{"rendered":"

Dormir bien no solo descansa el cerebro. Tambi\u00e9n parece activar mecanismos f\u00edsicos que ayudan a mover el l\u00edquido que circula alrededor de \u00e9l, un proceso relacionado con la eliminaci\u00f3n de desechos metab\u00f3licos. Un nuevo estudio en personas sanas ha demostrado que ese movimiento puede potenciarse de forma no invasiva mientras dormimos. Los investigadores utilizaron estimulaci\u00f3n […]<\/p>\n","protected":false},"author":284226809,"featured_media":1957,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[33205457,33205441,2127],"tags":[33206038,33205467,33206462,33206459,33205517,33206465,33205466,33206463,33206460,33206053,33206464,33206191,33206461],"class_list":["post-1955","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-al-dia","category-medicina","category-salud","tag-alzheimer","tag-cerebro","tag-estimulacion-cerebral","tag-liquido-cefalorraquideo","tag-memoria","tag-nature-neuroscience","tag-neurociencia","tag-neurologia","tag-ondas-cerebrales","tag-salud-cerebral","tag-science-translational-medicine","tag-sueno","tag-sueno-profundo"],"acf":[],"yoast_head":"\nEL CEREBRO PUEDE \u201cLIMPIARSE\u201d MEJOR SI ESTIMULAMOS EL SUE\u00d1O - 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