Alzheimer's Research News

May 21, 2026

Top Headlines

Scientists Found a Hidden Alzheimer’s Trigger and Shut It Down

May 20, 2026 A newly identified enzyme called IDOL could become a major new target in the fight against Alzheimer’s disease. Researchers found that removing it from neurons sharply reduced amyloid plaques and improved key brain processes linked to resilience ...

Scientists Reverse Alzheimer’s in Mice with Breakthrough Nanotechnology

May 17, 2026 A new nanotechnology treatment reversed Alzheimer’s symptoms in mice by restoring the brain’s natural cleanup system. The specially engineered nanoparticles helped clear toxic amyloid proteins from the brain and repair the blood-brain barrier, ...

Scientists Reversed Memory Loss by Recharging the Brain’s Tiny Engines

May 16, 2026 Researchers have shown for the first time that malfunctioning mitochondria — the cell’s energy generators — may directly cause cognitive decline in neurodegenerative diseases. By creating a new tool that temporarily boosts mitochondrial ...

Is Cannabis Safe After 65? Stanford Experts Reveal 5 Risks Older Adults Should Know

May 15, 2026 Cannabis use among older adults is rising fast, but today’s marijuana is far more potent than many people realize — and experts warn the risks may be underestimated. Stanford Medicine specialists ...

This Daily Habit Could Lower Dementia Risk by 35%, Scientists Say

May 13, 2026 A huge long-term study found that drinking two to three cups of coffee a day was linked to a much lower risk of dementia, especially before age 75. Researchers say caffeine may help keep brain cells active while reducing inflammation and harmful ...

This Simple Amino Acid Supplement Greatly Reduces Alzheimer’s Damage

May 4, 2026 A new study suggests a surprisingly simple compound could help fight Alzheimer’s disease. Researchers found that arginine—an inexpensive amino acid already considered safe—can reduce the buildup of toxic amyloid proteins in the brain, a ...

Alzheimer’s Drugs May Not Work and Could Raise Brain Risks

May 4, 2026 Drugs designed to clear amyloid beta from the brain—once seen as a promising path to slowing Alzheimer’s—may not actually help patients in any meaningful way, according to a major review of over 20,000 participants. Even more concerning, they ...

Boosting One Protein Helps the Brain Fight Alzheimer’s

May 2, 2026 Scientists have discovered a way to help the brain clean itself of harmful Alzheimer’s plaques by activating its own support cells. By increasing a protein called Sox9, researchers were able to boost the activity of astrocytes, star shaped cells ...

Scientists Discover a Hidden Brain “Cleaning” Effect Triggered by Movement

May 1, 2026 Scientists have uncovered a surprising link between simple body movement and brain health: every time you tighten your abdominal muscles—even slightly—your brain may gently sway inside your ...

Scientists Restore Memory by Blocking a Single Alzheimer’s Protein

Apr. 30, 2026 Researchers have identified a new potential weapon against Alzheimer’s: blocking a protein called PTP1B. In mice, this approach boosted memory and helped brain immune cells clear harmful plaque buildup. Since PTP1B is also linked to diabetes and ...

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

Apr. 23, 2026 A rare group of adults over 80, known as SuperAgers, are rewriting what we thought was possible for the aging brain. With memory abilities comparable to people decades younger, their brains either resist or withstand the damage typically linked to ...

Scientists Say We’ve Been Treating Alzheimer’s All Wrong

Apr. 10, 2026 Alzheimer’s isn’t just one problem—it’s a tangled mix of biology, aging, and overall health. That’s why drugs targeting a single factor have fallen short, even as new treatments show modest benefits. Scientists are now pushing toward ...

Latest Headlines

updated 9:42am EDT

This “rotten Egg” Brain Gas Could Be the Key to Fighting Alzheimer’s Disease

Apr. 8, 2026 Scientists have uncovered a surprising new player in Alzheimer’s disease: a protein called CSE that helps produce tiny amounts of hydrogen sulfide ...

Scientists Just Watched Alzheimer’s Damage Happen in Real Time

Apr. 7, 2026 Scientists at Oregon State University have captured something researchers have long struggled to see: the real-time chemical interactions that help drive Alzheimer’s disease. By watching how metal ...

Scientists Discover Why Your Appetite Suddenly Disappears When You’re Sick

Mar. 28, 2026 Scientists have uncovered how your body actually tells your brain to stop eating when you’re sick. In a new study, researchers found that ...

Scientists Discover Alzheimer’s Hidden “death Switch” in the Brain

Mar. 23, 2026 Scientists have uncovered a hidden “death switch” in the brain that may be driving Alzheimer’s disease—and even found a way to turn it off in mice. The culprit is a toxic pairing of two ...

Scientists Finally Reveal How This Alzheimer’s Drug Really Works

Mar. 17, 2026 A key Alzheimer’s drug has finally revealed its secret. Researchers discovered that lecanemab works by activating the brain’s immune cells—but only through a specific part of the antibody ...

A Surprising Blood Protein Pattern May Reveal Alzheimer’s

Mar. 12, 2026 A new study suggests Alzheimer’s disease may be detectable through subtle shape changes in proteins found in the blood. Researchers discovered that structural differences in three blood proteins ...

Scientists Turn Brain Cells Into Alzheimer’s Plaque Cleaners

Mar. 11, 2026 Scientists have developed a promising new approach to treating Alzheimer’s disease by turning ordinary brain cells into powerful plaque-clearing machines. Instead of requiring frequent antibody ...

Cannabis Study Finds THC Can Create False Memories

Mar. 11, 2026 THC doesn’t just blur memories—it can create new ones that never happened. In a controlled experiment, cannabis users were much more likely to recall words that were never shown and struggled ...

A Bold New Plan Could Finally Cure Type 1 Diabetes

Mar. 2, 2026 Researchers are developing a two-part therapy for type 1 diabetes: lab-made insulin-producing cells paired with custom-engineered immune cells that protect them. The goal is to stop the immune system ...

Iron Outperforms Rare Metals in Stunning Chemistry Advance

Feb. 27, 2026 Researchers at Nagoya University have created a more efficient iron-based photocatalyst that could reduce the need for rare and expensive metals in advanced chemistry. Unlike earlier designs, the new ...

Alzheimer’s May Begin With a Silent Drop in Brain Blood Flow

Feb. 24, 2026 Subtle changes in brain blood flow and oxygen use are closely linked to hallmark signs of Alzheimer’s, including amyloid plaques and memory-related brain shrinkage. Simple, noninvasive scans may ...

Simple Blood Test Can Forecast Alzheimer’s Years Before Memory Loss

Feb. 23, 2026 Scientists have created a blood test that can estimate when Alzheimer’s symptoms are likely to begin. By measuring a protein called p-tau217, the model predicts symptom onset within roughly three ...

Just 5 Weeks of Brain Training May Protect Against Dementia for 20 Years

Feb. 11, 2026 A simple brain-training program that sharpens how quickly older adults process visual information may have a surprisingly powerful long-term payoff. In a major 20-year study of adults 65 and older, ...

“Celtic Curse” Hotspots Found in Scotland and Ireland With 1 in 54 at Risk

Feb. 21, 2026 Researchers have mapped the genetic risk of hemochromatosis across the UK and Ireland for the first time, uncovering striking hotspots in north-west Ireland and the Outer Hebrides. In some regions, ...

A Silent Brain Disease Can Quadruple Dementia Risk

Feb. 1, 2026 Researchers studying nearly 2 million older adults found that cerebral amyloid angiopathy sharply raises the risk of developing dementia. Within five years, people with the condition were far more ...

Alzheimer’s Scrambles Memories While the Brain Rests

Feb. 1, 2026 When the brain rests, it usually replays recent experiences to strengthen memory. Scientists found that in Alzheimer’s-like mice, this replay still occurs — but the signals are jumbled and poorly ...

Obesity and High Blood Pressure May Directly Cause Dementia

Jan. 26, 2026 A new genetic study suggests that obesity and high blood pressure may play a direct role in causing dementia, not just increasing the risk. By analyzing data from large populations in Denmark and the ...

Cannabis Was Touted for Nerve Pain. The Evidence Falls Short

Jan. 19, 2026 Cannabis-based medicines have been widely promoted as a potential answer for people living with chronic nerve pain—but a major new review finds the evidence just isn’t there yet. After analyzing ...

Hearing Aids Didn’t Boost Memory Tests but Dementia Risk Dropped

Feb. 9, 2026 A long-term study of older adults with moderate hearing loss found that hearing aids did not lead to better performance on memory or thinking tests, but the story did not end there. Over seven years, ...

Massive Brain Study Reveals Why Memory Loss Can Suddenly Speed Up With Age

Jan. 14, 2026 A massive international brain study has revealed that memory decline with age isn’t driven by a single brain region or gene, but by widespread structural changes across the brain that build up over ...

This One Gene May Explain Most Alzheimer’s Cases

Jan. 23, 2026 Alzheimer’s may be driven far more by genetics than previously thought, with one gene playing an outsized role. Researchers found that up to nine in ten cases could be linked to the APOE gene — ...

Scientists Find ‘master Regulator’ That Could Reverse Brain Aging

Jan. 16, 2026 Researchers have identified OTULIN, an immune-regulating enzyme, as a key trigger of tau buildup in the brain. When OTULIN was disabled, tau vanished from neurons and brain cells remained healthy. ...

A 25-Year Study Found an Unexpected Link Between Cheese and Dementia

Feb. 4, 2026 A massive Swedish study tracking nearly 28,000 people for 25 years found an unexpected link between full-fat dairy and brain health. Among adults without a genetic risk for Alzheimer’s, eating more ...

A Weak Body Clock May Be an Early Warning for Dementia

Jan. 3, 2026 Your daily rhythm may matter more for brain health than previously thought. Older adults with weaker, more disrupted activity patterns were far more likely to develop dementia than those with steady ...

What Cannabis Really Does for Chronic Pain

Dec. 30, 2025 Cannabis products with higher THC levels may slightly reduce chronic pain, particularly nerve pain, according to a review of multiple clinical trials. The improvement was small and short-lived, while ...

A New Drug Could Stop Alzheimer’s Before Memory Loss Begins

Dec. 22, 2025 New research suggests Alzheimer’s may start far earlier than previously thought, driven by a hidden toxic protein in the brain. Scientists found that an experimental drug, NU-9, blocks this early ...

Study Links Full-Fat Cheese to Lower Dementia Risk

Dec. 21, 2025 Eating full-fat cheese and cream may be associated with a lower risk of dementia, according to a large study that tracked people for more than 25 years. Those who consumed higher amounts of these ...

Cannabis Compounds Show Unexpected Power Against Ovarian Cancer

Dec. 15, 2025 Scientists have discovered that key compounds from cannabis—CBD and THC—show surprisingly strong effects against ovarian cancer cells. Used together, they slow cell growth, reduce colony ...

Study Shows Young Blood Can Slow Alzheimer’s in Mice

Jan. 10, 2026 New research shows that aging blood can accelerate Alzheimer’s-like changes in the brain, while younger blood may offer protection. In mouse experiments, older blood worsened memory performance and ...

Single Enzyme Mutation Reveals a Hidden Trigger in Dementia

Dec. 9, 2025 Researchers discovered that a tiny structural feature of the enzyme GPX4 helps keep neurons safe. A rare mutation removes this protection, allowing harmful molecules to damage cell membranes and ...