Uploaded July 2026 | Updated September 2026, 3 weeks ago
This new approach could help with Alzheimer's disease
Inhaling high levels of carbon dioxide intermittently for half an hour flushes proteins linked to Alzheimer’s disease out of the brain, a small study has found. Exposure to the gas changes how blood vessels in the brain constrict and dilate while we’re awake, mimicking activity that occurs during deep sleep. This then turbocharges the glymphatic system to remove the build-up of waste products that could cause harm.
A 2025 study suggests the same approach could help with Parkinson’s disease, by clearing the protein alpha-synuclein. “If you have any condition that is due to or exacerbated by any sort of accumulation of waste, this could be something beneficial,” says Sephira Ryman at The University of New Mexico, Albuquerque.
Learn more: newscientist.com/article/2580471-inhaling-high-dose-co2-clears-alzheimers-proteins-from-the-brain
This new approach could help with Alzheimer's disease
Inhaling high levels of carbon dioxide intermittently for half an hour flushes proteins linked to Alzheimer’s disease out of the brain, a small study has found. Exposure to the gas changes how blood vessels in the brain constrict and dilate while we’re awake, mimicking activity that occurs during deep sleep. This then turbocharges the glymphatic system to remove the build-up of waste products that could cause harm.
A 2025 study suggests the same approach could help with Parkinson’s disease, by clearing the protein alpha-synuclein. “If you have any condition that is due to or exacerbated by any sort of accumulation of waste, this could be something beneficial,” says Sephira Ryman at The University of New Mexico, Albuquerque.
Learn more: newscientist.com/article/2580471-inhaling-high-dose-co2-clears-alzheimers-proteins-from-the-brain
