Nov. 28, 2025 — Researchers found that repeated head impacts can disrupt a key system that helps the brain wash away waste. In professional fighters, this system initially seems to work harder after trauma, then declines over time. MRI scans revealed that these ...

Nov. 28, 2025 — Princeton researchers found that the brain excels at learning because it reuses modular “cognitive blocks” across many tasks. Monkeys switching between visual categorization challenges revealed that the prefrontal cortex assembles these blocks ...

Nov. 28, 2025 — Researchers identified a new, sticky form of mitochondrial DNA damage that builds up at dramatically higher levels than in nuclear DNA. These lesions disrupt energy production and activate stress-response pathways. Simulations show the damage makes ...

Nov. 27, 2025 — Spermine, a small but powerful molecule in the body, helps neutralize harmful protein accumulations linked to Alzheimer’s and Parkinson’s. It encourages these misfolded proteins to gather into manageable clumps that cells can more efficiently ...

Nov. 27, 2025 — Scientists studying young adults with obesity discovered early indicators of brain stress that resemble patterns seen in cognitive impairment. The group showed higher inflammation, signs of liver strain and elevated neurofilament light chain, a ...

Nov. 27, 2025 — A massive veteran study found a strong connection between untreated sleep apnea and a higher chance of Parkinson’s. CPAP users had much lower odds of developing the condition. Researchers believe that repeated dips in oxygen during sleep may ...

Nov. 26, 2025 — Scientists discovered that lowered brain energy signaling in the hippocampus can lead to both depression- and anxiety-like behaviors in mice. Stress reduced ATP, a molecule important for cell energy and communication. Altering a protein called ...

Nov. 25, 2025 — Scientists discovered that more muscle and less hidden abdominal fat are linked to a younger biological brain age. Deep visceral fat appeared to accelerate brain aging, while muscle mass offered a protective ...

Nov. 25, 2025 — Scientists have found that a mutation tied to Alzheimer’s disrupts the production and quality of exosomes—tiny cell-made communication packets. Cells with the defective SORLA protein generate fewer exosomes and ones far less able to support ...

Nov. 24, 2025 — Hypertension begins harming the brain surprisingly early, even before measurable blood pressure increases. Key cells related to blood vessels, signaling, and myelin maintenance begin aging prematurely and malfunctioning. These disruptions resemble ...

Nov. 23, 2025 — Researchers have uncovered a surprising way the brain switches pain on, revealing that neurons can release an enzyme outside the cell that activates pain signals without disrupting normal movement or sensation. This enzyme, called VLK, modifies ...

Nov. 23, 2025 — Researchers discovered that raising the protein Sox9 can help the brain’s astrocytes clear out toxic plaque buildup linked to Alzheimer’s. In mouse models that already showed memory problems, activating these cells improved cognitive ...