Dementia News

October 26, 2025

Top Headlines

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 ...

Why the Brain’s GPS Fails with Age, and How Some Minds Defy It

Oct. 5, 2025 — Stanford scientists found that aging disrupts the brain’s internal navigation system in mice, mirroring spatial memory decline in humans. Older mice struggled to recall familiar locations, while a few “super-agers” retained youthful brain ...

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 ...

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 of Alzheimer’s, even without dementia symptoms. ...

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 immune cells can become clogged with fat, leaving ...

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 confirmed the results in human brain tissue from ...

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 transform dementia care and reduce its crushing toll ...

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 mice carrying the Alzheimer’s-linked APOE4 gene who ...

Latest Headlines

updated 1:59pm EDT

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 ...

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 ...

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 ...

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 ...

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 ...

Immune System Discovery Reveals Potential Solution to Alzheimer's

June 2, 2025 — A new way of thinking about Alzheimer's disease has yielded a discovery that could be the key to stopping the cognitive decline seen in Alzheimer's and other neurodegenerative diseases, ...

Sustained in the Brain: How Lasting Emotions Arise from Brief Stimuli, in Humans and Mice

May 29, 2025 — Humans and mice share persistent brain-activity patterns in response to adverse sensory experience, scientists find, opening a window to our emotions and, perhaps, neuropsychiatric ...

Sharing of Lifespan Brain Study Data Expected to Light New Paths

May 28, 2025 — Researchers have released the full dataset from the Dallas Lifespan Brain Study, a decade-long project designed to track brain and cognitive health as people age and distinguish neurologically ...

Newly Identified Group of Nerve Cells in the Brain Regulates Bodyweight

May 28, 2025 — Obesity is a global health problem that affects many people. In recent years, very promising anti-obesity drugs have been developed. Despite these successes, there are patients who do not respond to ...

New Pace of Aging Measurement Reveals Trajectories of Healthspan and Lifespan in Older People

May 27, 2025 — A newly refined method for measuring the Pace of Aging in population-based studies provides a powerful tool for predicting risks associated with aging, including chronic illness, cognitive ...

Different Versions of APOE Protein Have Varying Effect on Microglia in Alzheimer's Disease

May 27, 2025 — A new study suggests how APOE2 is protective while APOE4 increases disease risk by regulating the brain's immune ...