Dementia News

October 5, 2026

Top Headlines

Your Gut Bacteria May Reveal How Fast Your Brain Is Aging

Oct. 4, 2026 A UCLA study links faster brain aging to specific gut bacteria and chemical byproducts, with older-looking brains also associated with poorer memory, focus, and mood. The findings suggest that biological signs of brain aging may appear decades ...

Your Gut May Be Making a Molecule That Raises Alzheimer’s Risk

Oct. 3, 2026 Scientists have linked a gut bacterial compound called ImP to greater Alzheimer’s risk, harmful brain protein buildup, and faster cognitive decline. The finding raises the possibility that reducing ImP in the blood could one day help slow or ...

This Diet May Slow Brain Aging by 2.5 Years

Oct. 1, 2026 People who followed the MIND diet more closely showed slower brain shrinkage and less grey matter loss over time, with the strongest differences equivalent to about 2.5 years of delayed brain aging. Berries and poultry were linked with healthier ...

Alzheimer’s Risk Gene APOE4 May Have a Reversible Weakness

Oct. 1, 2026 The Alzheimer’s risk gene APOE4 may actively damage brain blood vessels and sabotage the cellular systems that remove harmful proteins. Researchers were able to reverse some of these effects in experiments, revealing promising new targets for ...

Brain Scans Reveal Which Disorders Are Linked to Faster Brain Aging

Sep. 29, 2026 A massive MRI study found that Alzheimer’s disease, mild cognitive impairment, psychiatric disorders, and addiction are associated with distinct patterns of accelerated brain aging. The strongest effects appeared in Alzheimer’s and mild ...

Scientists Found a Surprising Driver of Alzheimer’s Outside the Brain

Sep. 27, 2026 Scientists found that immune cells contributing to Alzheimer’s-related brain damage may be activated in lymph nodes outside the brain before traveling into the nervous system. Blocking this pathway in mice dramatically reduced neurodegeneration ...

Glucosamine, a Popular Joint Supplement, Linked to Faster Alzheimer’s Progression

Sep. 27, 2026 A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint ...

Scientists Restore a Brain Protein and Reverse Signs of Aging in Mice

Sep. 18, 2026 Scientists found that declining levels of the brain protein Menin may help drive aging, with lower levels in mice linked to inflammation, cognitive decline, weaker bones, and thinner skin. Restoring Menin reversed several age-related changes, while ...

Scientists Discover a Major Brain Shift Between Ages 50 and 75

Sep. 15, 2026 Scientists have uncovered sweeping changes in how the human brain controls and organizes its genome beginning in midlife, offering new clues to why aging sharply increases the risk of Alzheimer’s and other neurodegenerative diseases. One of the ...

Hidden Brain Wiring May Help Keep the Mind Sharp as Gray Matter Shrinks

Sep. 14, 2026 Scientists have discovered that the brain’s short-range wiring may help protect cognition even as gray matter shrinks with age. Healthier connections just beneath the brain’s surface were linked to better language skills and appeared to weaken ...

Scientists Find a New Layer of Alzheimer’s Hidden in the Genome

Sep. 13, 2026 Scientists found that the 3D organization of DNA is disrupted in several types of brain cells affected by Alzheimer’s disease, altering how important genes are switched on and off. The discovery reveals a previously underexplored layer of the ...

Stanford Scientists Discover a Seafood That Can Reverse Signs of Aging

Sep. 4, 2026 A substance found in edible sea squirts appeared to reverse several signs of aging in older mice. Plasmalogen supplements improved memory and learning, strengthened connections between brain cells, reduced inflammation, and even helped the mice grow ...

Latest Headlines

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One Immune Switch May Help Drive Aging Across the Body

Sep. 3, 2026 Aging may be partly fueled by immune cells losing their ability to clear away damaged, inflammation-promoting cells. Blocking a single receptor restored that cleanup process in mice, reducing ...

Money Problems May Age Your Brain Faster

Sep. 2, 2026 Persistent financial hardship in early and middle adulthood was linked to poorer thinking skills by the 50s and more signs of brain aging later in life. Researchers say years of chronic stress and ...

Alzheimer’s May Leave a Mark on the Brain Long Before Plaques Appear

Sep. 2, 2026 Brain changes associated with Alzheimer’s may begin at least seven years before amyloid plaques become detectable with current PET scans. Researchers uncovered the signal by tracking healthy older ...

Reaching 90 Without Dementia Doesn’t Mean You’re in the Clear

Sep. 1, 2026 A study of people over 90 found that dementia risk remains strongly shaped by sex, race and genetics, with women and black participants facing notably higher risks. Intriguingly, some people stayed ...

Your Sleep May Be Hiding an Early Clue to Alzheimer’s

Aug. 28, 2026 Frequent micro-awakenings during sleep were linked to higher genetic risk for Alzheimer’s in healthy middle-aged adults who had no symptoms. The discovery raises the possibility that subtle changes ...

Too Much or Too Little Sleep May Make Your Body Age Faster

Aug. 24, 2026 Both too little and too much sleep may be linked to faster aging throughout the body. Researchers analyzing 23 biological aging clocks found the lowest aging levels among people sleeping about 6.4 to ...

A Major Alzheimer’s Risk Gene May Shrink Brain Cells Years Before Symptoms

Aug. 23, 2026 Researchers have uncovered a possible reason why the Alzheimer’s risk gene APOE4 can disrupt the brain long before memory problems begin. In mice, ...

This Common Vitamin Was Linked to 13% Better Cognitive Scores

Aug. 23, 2026 Older adults with mild cognitive impairment and sleep problems who took at least 5,000 IU of vitamin D daily scored more than 13% higher on a cognitive test than those taking none. The preliminary ...

Multilingual People May Have Brains Up to 13 Years Younger

Aug. 22, 2026 People who speak several languages may have brains that age more slowly, with four-language speakers showing brains that appeared about 13 years younger than those of monolinguals. Starting earlier ...

A Little-Known Protein May Be Fueling Alzheimer’s — and Scientists Found a Way to Block It

Aug. 16, 2026 An experimental Alzheimer’s compound prevented damaging protein clumps from forming in the brains of mice, helping nerve cells survive longer and ...

Women Taking Estrogen Had Fewer Signs of Alzheimer’s in Their Brains

Aug. 14, 2026 Women who used estrogen-only hormone therapy later in life were less likely to develop dementia and showed fewer signs of Alzheimer’s disease in their brains, according to a large study of more ...

Immune Cells Flood Into the Aging Brain, Stanford Scientists Discover

Aug. 14, 2026 Scientists have discovered that the aging human brain may be far less isolated from the rest of the body than once believed. Stanford researchers found that large numbers of immune cells from the ...

A Little Movement in Midlife Could Pay Off for Your Brain Years Later

Aug. 16, 2026 Exercise and healthy blood sugar levels in midlife may help slow cognitive decline decades later. Physical activity appeared especially beneficial for Mexican American adults, suggesting that some ...

Your Gut May Help Your Brain Decide What to Remember

July 29, 2026 Signals traveling from the gut to the brain may help turn meals into lasting memories. Rats showed stronger memory activity after consuming nutritious foods, but not after drinking sweet liquids with ...

Scientists Discover a Hidden Brain Shift That Begins Around Age 50

Aug. 6, 2026 Beginning around age 50, the brain’s memory center appears to lose many of its longtime immune cells and replace them with more inflammatory ones. This surprising shift may help explain how normal ...

Superagers Keep Youthful Memories but Their DNA Does Not Explain Why

July 25, 2026 Scientists expected SuperAgers might simply inherit fewer Alzheimer’s-related risks, but their genes looked much like those of typical older adults. Their extraordinary memories may instead come ...

Scientists Discover a Protein That Protects the Brain from Alzheimer’s Damage

July 20, 2026 A protein called SORLA may act as a powerful defense against the toxic tau tangles involved in Alzheimer’s disease. Mice with extra SORLA had less tau accumulation, less brain atrophy, and ...

Alzheimer’s Breakthrough: Scientists Restore Two Hours of Sleep Without Clearing Brain Plaques

July 20, 2026 Researchers have uncovered a surprising culprit behind sleep loss in Alzheimer’s disease: the brain’s own immune cells. In mice with amyloid plaques, overactive microglia triggered inflammation ...

New Alzheimer's Drug Repairs DNA Damage and Reduces Brain Inflammation

July 17, 2026 A drug originally developed for spinal cord injury may offer a fresh approach to treating Alzheimer’s disease. In mouse studies, KCL-286 repaired dangerous DNA damage, reduced inflammation, and ...

Scientists May Have Finally Found How Alzheimer's Spreads Through the Brain

June 30, 2026 A common brain protein may be giving Alzheimer’s disease an unexpected way to spread, carrying toxic Tau proteins from damaged neurons into healthy ones. By blocking these harmful protein packages ...

Scientists May Have Finally Found How Alzheimer's Kills Brain Cells

July 5, 2026 Researchers have identified a previously overlooked mechanism of brain cell death that appears to play a major role in Alzheimer's disease and frontotemporal dementia. The finding could lead to ...

Scientists Discover Why Poor Sleep May Harm Some Brains More

July 31, 2026 A gene involved in the brain’s overnight cleaning system may change how strongly poor sleep affects Alzheimer’s-related brain changes. The findings point toward more personalized prevention ...

Millions Take Omega-3 Fish Oil for Brain Health but a New Study Found No Benefit

June 29, 2026 Fish oil supplements successfully delivered omega-3s to the brain, but a two-year study found no meaningful benefits for memory, cognition, or Alzheimer’s-related brain changes. The results ...

Scientists Reprogram Brain Immune Cells to Fight Alzheimer’s

June 19, 2026 A newly identified molecule called OLE helped restore the brain’s immune cells to a more protective state in Alzheimer’s models. The treatment reduced toxic plaque buildup and improved memory, ...

Copper Drug Clears Toxic Alzheimer’s Proteins and Restores Memory

June 15, 2026 A copper-based compound restored the brain’s ability to clear toxic Alzheimer’s proteins, dramatically reducing amyloid buildup and improving memory in laboratory experiments. The findings point ...

June 10, 2026 A major study suggests glucosamine, a popular supplement for joint pain, could be linked to faster progression from mild cognitive impairment to Alzheimer’s disease. Researchers found a 25% higher ...

Scientists Found a New Alzheimer’s Trigger and a Drug That Stops It

June 8, 2026 Researchers have identified a new Alzheimer’s target and created an experimental compound that blocks a damaging process inside brain cells. In mice, the treatment slowed nerve cell loss, reduced ...

A Hidden Alzheimer’s Tipping Point May Decide Who Gets Dementia

July 26, 2026 Scientists have identified a possible tipping point that helps determine whether Alzheimer’s-related brain changes lead to dementia. The key may lie in how the brain’s immune cells respond to ...

Alzheimer's Tau Protein Has a Surprising Secret Role in Memory

July 12, 2026 Researchers found that tau is essential for turning new experiences into lasting memories by helping organize the brain's memory-storing cells. The mouse study also revealed how abnormal tau may ...

Scientists Discover Why Alzheimer’s Risk Hits Women So Much Harder

May 20, 2026 Women may be especially sensitive to the effects of common dementia risk factors, according to a new UC San Diego study of over 17,000 adults. Researchers say tailoring prevention strategies ...