16/02/2026
🧠 New Insight Into Memory Loss in Alzheimer’s
A fascinating new article from ScienceAlert explains how memory loss in Alzheimer’s may be linked to problems with the brain’s “replay mode.”
Normally, the hippocampus replays recent experiences while we rest, helping turn them into long-term memories. In a mouse model of Alzheimer’s, this replay was still happening, but it was scrambled and disorganised, like a movie playing out of sequence. The result? Difficulty remembering and navigating.
While this research is still in early stages, it gives us a clearer picture of what may be happening inside the brain, and that’s an important step toward better diagnosis and treatment in the future.
To consolidate memories, our brains replay them during periods of rest as a kind of 'replay mode'.