Dementia News

November 8, 2025

Top Headlines

Scientists Find Brain Cells That Could Stop Alzheimer’s

Nov. 8, 2025 — Researchers have identified special immune cells in the brain that help slow Alzheimer’s. These microglia work to reduce inflammation and block the spread of harmful proteins. They appear to protect memory and brain health, offering a promising ...

Scientists Find Hidden Brain Source That Fuels Dementia

Nov. 6, 2025 — Weill Cornell researchers uncovered how free radicals from astrocyte mitochondria can fuel dementia. Using new compounds that target these radicals at their source, they slowed brain inflammation and neuronal damage in mice. The findings reveal a ...

Scientists May Have Found How to Reverse Memory Loss in Aging Brains

Nov. 5, 2025 — Virginia Tech researchers have shown that memory loss in aging may be reversible. Using CRISPR tools, they corrected molecular disruptions in the hippocampus and amygdala, restoring memory in older rats. Another experiment revived a silenced memory ...

Alzheimer’s Might Be Powered by a Broken Sleep-wake Cycle

Nov. 3, 2025 — Disrupted sleep patterns in Alzheimer’s disease may be more than a symptom—they could be a driving force. Researchers at Washington University found that the brain’s circadian rhythms are thrown off in key cell types, changing when hundreds of ...

Resetting the Body’s Rhythm Could Protect the Brain from Alzheimer’s

Nov. 1, 2025 — Researchers discovered that altering the body’s natural rhythm can help protect the brain from Alzheimer’s damage. By turning off a circadian protein in mice, they raised NAD+ levels and reduced harmful tau buildup. The findings suggest that ...

Scientists Reverse Alzheimer’s in Mice with Groundbreaking Nanotech

Oct. 30, 2025 — Researchers used supramolecular nanoparticles to repair the brain’s vascular system and reverse Alzheimer’s in mice. Instead of carrying drugs, the nanoparticles themselves triggered natural clearance of amyloid-β proteins. This restored ...

Scientists Reversed Brain Aging and Memory Loss in Mice

Oct. 23, 2025 — Cedars-Sinai researchers created “young” immune cells from human stem cells that reversed cognitive decline and Alzheimer’s symptoms in mice. The treated animals showed better memory and healthier brain structures. The cells seemed to protect ...

A “Toxic Duo” May Be the Hidden Trigger Behind Alzheimer’s Disease

Oct. 22, 2025 — Scientists have uncovered a toxic alliance between Aβ and fibrinogen that may explain how Alzheimer’s disease begins. The two proteins together create stubborn clots that damage blood vessels and spark inflammation in the brain. These effects ...

These 80-year-olds Have the Memory of 50-year-olds. Scientists Finally Know Why

Oct. 19, 2025 — SuperAgers defy normal aging by keeping sharp memories and healthy brains well into their 80s. Northwestern scientists discovered that these individuals either resist the buildup of harmful brain ...

Tiny Brain Nanotubes Found by Johns Hopkins May Spread Alzheimer’s

Oct. 16, 2025 — Johns Hopkins scientists uncovered microscopic “nanotube” channels that neurons use to transfer toxic molecules. While this process clears waste, it can also spread harmful proteins like amyloid-beta. Alzheimer’s-model mice showed more ...

Scientists Find the Brain’s Hidden Pulse That May Predict Alzheimer’s

Oct. 14, 2025 — Researchers at USC have created the first method to noninvasively measure microscopic blood vessel pulses in the human brain. Using advanced 7T MRI, they found these tiny pulsations grow stronger with age and vascular risk, disrupting the brain’s ...

Fat May Secretly Fuel Alzheimer’s, New Research Finds

Oct. 3, 2025 — New research from Houston Methodist reveals how obesity may directly drive Alzheimer’s disease. Scientists discovered that tiny messengers released by fat tissue, called extracellular vesicles, can carry harmful signals that accelerate the buildup ...

Latest Headlines

updated 11:47am EST

Walking May Be the Brain’s Best Defense Against Alzheimer’s

Nov. 4, 2025 — Walking a few thousand steps daily may help hold off Alzheimer’s for years, a Mass General Brigham study found. Even moderate physical activity slowed both cognitive decline and the buildup of ...

Dolphins May Be Getting Alzheimer’s from Toxic Ocean Blooms

Oct. 11, 2025 — Dolphins washing up on Florida’s shores may be victims of the same kind of brain degeneration seen in humans with Alzheimer’s disease. Researchers discovered that cyanobacterial toxins—worsened ...

Scientists Find Hidden Brain Damage Behind Dementia

Oct. 6, 2025 — A University of New Mexico scientist is revealing what might be one of the most overlooked causes of dementia — damage in the brain’s tiny blood vessels. Dr. Elaine Bearer has created a new way ...

Hidden Alzheimer’s Warning Signs Found in Parkinson’s Patients Without Dementia

Sep. 28, 2025 — Researchers in Japan discovered that Parkinson’s patients diagnosed in their 80s are far more likely to show signs of amyloid buildup, a hallmark ...

Brain Fat, Not Just Plaques, May Be the Hidden Driver of Alzheimer’s

Sep. 24, 2025 — For decades, scientists believed Alzheimer’s was driven mainly by sticky protein plaques and tangles in the brain. Now Purdue researchers have revealed a hidden culprit: fat. They found that brain ...

Hidden Brain Signal Reveals Alzheimer’s Years Before Symptoms

Sep. 22, 2025 — A new study has revealed that TSPO, a protein linked to brain inflammation, rises long before Alzheimer’s symptoms appear. Researchers tracked the protein in genetically engineered mice and ...

Scientists Reveal the Everyday Habits That May Shield You from Dementia

Sep. 21, 2025 — New studies reveal that lifestyle changes—such as exercise, healthy eating, and social engagement—can help slow or prevent cognitive decline. Experts say this low-cost, powerful approach could ...

Could Plastic in Your Food Be Fueling Azheimer’s?

Sep. 18, 2025 — Plastic particles from everyday items like Styrofoam cups and take-out containers are finding their way into the brain, where they may trigger Alzheimer’s-like symptoms. New research shows that ...

Sleepless Nights May Raise Dementia Risk by 40%, Mayo Clinic Reveals

Sep. 14, 2025 — Chronic insomnia may do more than leave you groggy, it could speed up brain aging. A large Mayo Clinic study found that people with long-term sleep troubles were 40% more likely to develop dementia ...

Simple Blood Test Could Spot Alzheimer’s Years Before Symptoms

Sep. 9, 2025 — Scientists discovered that certain blood proteins linked to brain injury and inflammation strongly correlate with early signs of memory and cognitive decline, especially in Hispanic and Latino ...

Sweeteners in Diet Drinks May Steal Years from the Brain

Sep. 4, 2025 — A large Brazilian study following more than 12,000 middle-aged adults found that those consuming the most artificial sweeteners—commonly found in diet sodas, flavored waters, and processed ...

A 3-Minute Brainwave Test Could Spot Alzheimer’s Years Before Symptoms

Sep. 4, 2025 — Scientists at the University of Bath have developed a simple three-minute brainwave test called Fastball EEG that can detect memory problems years before Alzheimer’s is typically diagnosed. Unlike ...

This Simple Diet Could Help Protect Memory, Even With Alzheimer’s Genes

Aug. 28, 2025 — A Mediterranean-style diet was linked to lower dementia risk, especially in people with high-risk Alzheimer’s genes. The strongest benefits were seen in those with two APOE4 copies, showing diet ...

Tiny Protein Dismantles the Toxic Clumps Behind Alzheimer’s

Aug. 23, 2025 — St. Jude researchers revealed that midkine blocks amyloid beta from forming harmful clumps linked to Alzheimer’s. Without it, the damaging assemblies accelerate, but with it, growth halts. The ...

A Startling Omega-3 Deficiency May Explain Women’s Alzheimer’s Risk

Aug. 22, 2025 — Researchers discovered that women with Alzheimer’s show a sharp loss of omega fatty acids, unlike men, pointing to sex-specific differences in the disease. The study suggests omega-rich diets could ...

Your Nose Could Detect Alzheimer’s Years Before Memory Loss

Sep. 1, 2025 — Researchers have uncovered why smell often fades early in Alzheimer’s: the brain’s immune cells dismantle key nerve connections between the olfactory bulb and brainstem. Membrane changes in ...

Lithium Deficiency May Be the Hidden Spark Behind Alzheimer’s

Aug. 29, 2025 — Harvard scientists have uncovered that lithium, a naturally occurring element in the brain, may be the missing piece in understanding Alzheimer’s. Their decade-long research shows that lithium ...

Alzheimer’s Risk May Start at the Brain’s Border, Not Inside It

Aug. 4, 2025 — Your brain has its own elite defense team — and new research shows these "guardian" cells might be the real battleground for neurological diseases like Alzheimer’s and stroke. ...

Scientists Discover the Receptor That Helps Your Brain Clean Itself—and Fight Alzheimer’s

July 27, 2025 — Scientists at UCSF have uncovered how certain immune cells in the brain, called microglia, can effectively digest toxic amyloid beta plaques that cause Alzheimer’s. They identified a key receptor, ...

The Silent Threat: How Hearing Loss and Loneliness Are Fueling Memory Decline

July 18, 2025 — A massive European study has uncovered a powerful connection between hearing loss, loneliness, and memory decline. Researchers at the University of Geneva found that older adults with hearing ...

Scientists Just Found 200+ Hidden Proteins That May Drive Alzheimer’s

July 12, 2025 — A surprising new study has uncovered over 200 misfolded proteins in the brains of aging rats with cognitive decline, beyond the infamous amyloid and tau plaques long blamed for Alzheimer’s. These ...

Researchers Grow 400+ Brain Cell Types—a Leap for Alzheimer’s and Parkinson’s Research

July 12, 2025 — Scientists at ETH Zurich have broken new ground by generating over 400 types of nerve cells from stem cells in the lab, far surpassing previous efforts that produced only a few dozen. By ...

Your Brain’s Hidden Defenses Against Alzheimer’s

July 10, 2025 — Scientists at UCSF combined advanced brain-network modeling, genetics, and imaging to reveal how tau protein travels through neural highways and how certain genes either accelerate its toxic journey ...

A Midlife MRI That Spots Rapid Aging and Signals Disease Long Before Symptoms

July 2, 2025 — A new brain scan tool shows how quickly your body and mind are aging. It can spot early signs of diseases like dementia, long before symptoms begin. The scan looks at hidden clues in your brain to ...

Scientists Just Found a Sugar Switch That Protects Your Brain from Alzheimer's

June 30, 2025 — Scientists have uncovered a surprising sugar-related mechanism inside brain cells that could transform how we fight Alzheimer’s and other dementias. It turns out neurons don’t just store sugar ...

This Brain Scan Sees Alzheimer’s Coming—but Only in Some Brains

June 29, 2025 — USC researchers have found a promising new brain scan marker that could better detect Alzheimer’s risk — but only for some. The tau-based benchmark works in Hispanic and White populations when ...

The Brain’s Sweet Spot: How Criticality Could Unlock Learning, Memory—and Prevent Alzheimer’s

June 25, 2025 — Our brains may work best when teetering on the edge of chaos. A new theory suggests that criticality a sweet spot between order and randomness is the secret to learning, memory, and adaptability. ...

The Common Blood Test That Predicts How Fast Alzheimer’s Hits

June 22, 2025 — A simple blood test could reveal which early Alzheimer’s patients are most at risk for rapid decline. Researchers found that people with high insulin resistance—measured by the TyG index—were ...

Iron Overload: The Hidden Culprit Behind Early Alzheimer’s in Down Syndrome

June 20, 2025 — USC researchers have uncovered a hidden driver behind the early and severe onset of Alzheimer's in people with Down syndrome: iron overload in the brain. Their study revealed that individuals ...

The Hunger Switch in Your Nose: How Smells Tell Your Brain to Stop Eating

June 12, 2025 — A team of scientists has discovered a direct link between the smell of food and feelings of fullness at least in lean mice. This brain circuit, located in the medial septum and triggered by food ...