Summary: New research shows that not all brain cells age equally, with certain cells, such as those in the hypothalamus, experiencing more age-related genetic changes. These changes include reduced activity in neuronal circuitry genes and increased activity in immunity-related genes.The findings provide a detailed map of age-sensitive brain regions, offering...

Summary: Researchers have discovered that pupil size during non-REM sleep correlates with memory consolidation. When pupils contract, the brain focuses on consolidating new memories; when dilated, it processes older ones.This separation prevents “catastrophic forgetting,” allowing the brain to efficiently manage both new and existing knowledge. These findings could lead to...