Allergy News

September 26, 2026

Top Headlines

That Fresh Cleaning Smell Could Be Filling Your Home with Nanoparticles

Sep. 26, 2026 Researchers found that scented cleaners can react with ozone indoors to create billions or trillions of invisible nanoparticles that can penetrate deep into the lungs. The pollution forms within minutes and, in some cases, may produce an inhaled ...

Stopping Ozempic May Raise Heart Attack and Stroke Risk

Sep. 21, 2026 A large study suggests the cardiovascular benefits of GLP-1 drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound can disappear surprisingly quickly when treatment stops. After two years off the medications, patients had a 22% higher risk of heart ...

Chronic Stress May Be Quietly Reshaping Your Heart

Sep. 21, 2026 Chronic inflammation tied to stress, lifestyle, mental health, and socioeconomic conditions may silently change the heart for years before any symptoms appear. People with the highest inflammation levels faced a 43% greater risk of heart attack and ...

Hidden Gut Defect That May Explain Why IBD Keeps Coming Back

Sep. 19, 2026 Researchers have uncovered a hidden molecular warning sign of inflammatory bowel disease (IBD) that can linger even when patients feel well and appear to be in remission. By studying around 900 human gut biopsies and patient-derived mini-intestines, ...

Scientists Solve a 50-year Mystery and Discover a New Human Blood Group

Sep. 19, 2026 Scientists have identified the genetic cause behind the mysterious AnWj blood group antigen, solving a puzzle that began in 1972 and establishing a new blood group system called MAL. The discovery could make it much easier to find extremely rare ...

Scientists Find How “Zombie” Cells Fuel Inflammation as We Age

Sep. 13, 2026 Scientists discovered that aging cells can use malfunctioning mitochondria to unlock inflammatory genes and keep the immune system stuck in a prolonged state of alert. Blocking one part of this process reduced inflammation and improved healthy aging ...

Scientists Discover a Hidden Switch That Shuts Down Inflammation

Sep. 12, 2026 Scientists have uncovered a natural braking system that helps the immune system switch off inflammation and prevent harmful immune cells from building up. Boosting this pathway in people reduced inflammation-related immune changes and sped up pain ...

Ozempic and Wegovy Linked to Nearly 40% Fewer Asthma Attacks

Sep. 9, 2026 Semaglutide, the drug found in Ozempic and Wegovy, was linked to nearly 40% fewer asthma attacks in a large real-world study. It was also associated with about 20% fewer COPD flare-ups. Researchers say GLP-1 drugs may offer respiratory benefits in ...

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 inflammation and helping their organs, muscles, and ...

Scientists Find Why the Liver May Not Heal Even After You Stop Drinking

Aug. 31, 2026 Alcohol-related liver disease may trap damaged liver cells in a regenerative limbo, preventing the organ from rebuilding itself even after drinking stops. Researchers linked the problem to inflammation-driven RNA errors and identified a pathway that ...

Common Supplements Rival Antibiotics for Severe Gum Disease

Aug. 30, 2026 Omega-3 and low-dose aspirin matched the effectiveness of antibiotics in a year-long study of patients with severe gum disease, with both approaches helping about 58% reach the treatment goal. The unexpected result could point to a new way to treat ...

HEPA Air Purifiers May Boost Brain Function After Just One Month

Aug. 30, 2026 Adults aged 40 and older performed about 12% faster on a test of executive function after using a HEPA air purifier at home for one month. The findings suggest that cleaner indoor air could offer a simple way to help protect the brain from the ...

Latest Headlines

updated 11:36am EDT

A Cancer Therapy Put Severe Rheumatoid Arthritis Into Remission

Aug. 29, 2026 CAR T-cell therapy dramatically reduced disease activity in six people with severe rheumatoid arthritis that had resisted other treatments, with three achieving medication-free remission. The ...

Dogs May Hold Surprising Clues to Human Longevity

Aug. 29, 2026 Dogs and humans may have more in common when it comes to aging than scientists realized. Researchers with the Dog Aging Project found that patterns of small molecules in dogs’ blood were linked to ...

A Missing Color in Indoor Light May Help Prevent Myopia

Aug. 26, 2026 A wavelength of light largely missing from indoor LEDs may play an important role in protecting developing eyes from nearsightedness. Researchers found that indigo light completely prevented myopia ...

Supercharged “natural Killer” Cells Could Be a Powerful New Cancer Weapon

Aug. 25, 2026 Researchers have found a way to supercharge natural killer cells, powerful immune cells that can attack cancer, so they can penetrate solid tumors ...

This Yeast Supplement May Boost Cancer-Fighting Immunity

Aug. 22, 2026 A simple yeast-based food supplement may help restore the immune system’s ability to fight cancer, according to new research in mice. Scientists found that yeast beta-glucan reprogrammed early ...

AI May Know How You’ll Respond to a Vaccine Before You Get It

Aug. 21, 2026 AI may be able to predict how strongly someone will respond to a vaccine before they receive it. By analyzing antibody patterns in more than 4,000 people, researchers found signs of “immune ...

Scientists Discover How Gut Bacteria “train” the Intestine to Fight Inflammation

Aug. 20, 2026 A compound made when gut bacteria break down dietary fiber may do more than briefly calm inflammation—it could leave a lasting protective ...

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 ...

Dirty Air May Trigger Painful Rheumatoid Arthritis Flares

Aug. 5, 2026 Tiny pollution particles from smoke, soot, and dust may worsen rheumatoid arthritis and raise the risk of painful flares, particularly after prolonged exposure. The findings suggest that avoiding ...

A 42-Year-Old Childhood Obesity Theory May Be Wrong

July 31, 2026 New research challenges the decades-old idea that children experience an “adiposity rebound” when their BMI begins rising around age 6. Although BMI returns to earlier levels, a more reliable ...

Coffee May Protect Your Heart but Energy Drinks Could Harm It

July 21, 2026 For most adults, a daily caffeine habit may be safer for the heart than many people assume. A new American Heart Association review found that up to 400 milligrams of caffeine a day, roughly three to ...

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 ...

CRISPR Makes Prostate Cancer Vulnerable to Immunotherapy

July 26, 2026 Scientists used CRISPR to make prostate cancer cells easier for the immune system to detect and destroy. The experimental treatment dramatically improved the effects of immunotherapy in mice and may ...

Scientists Discover a Hidden Heart Valve Risk Linked to Gum Disease

July 13, 2026 Researchers found that bacteria linked to gum disease may help drive the development of calcific aortic valve stenosis by triggering inflammation and calcium buildup in the heart valve. The early ...

July 23, 2026 A 25-year study found that frequent consumption of soda, sports drinks, and fruit juice beginning in childhood was linked to a higher risk of high blood pressure in adulthood. Swapping one daily ...

Ebola and Hantavirus Can Start Like the Flu but Turn Deadly Fast

June 22, 2026 Two dangerous viruses are back in the spotlight, reminding health officials how quickly infectious diseases can become serious threats. Hantavirus, often linked to rodents, can cause severe heart and ...

Can’t Sleep in the Heat? These 8 Tricks Could Save Your Night

July 29, 2026 Sleeping well during a heatwave starts with stopping the home from overheating. Close blinds against strong sunlight, ventilate when the air outside becomes cooler, and avoid using heat-producing ...

USC Scientists Just Unlocked an Endless Supply of Cancer-Fighting Immune Cells

June 29, 2026 A new stem-cell-inspired technique allows scientists to grow vast numbers of immune-cell progenitors that can be engineered to hunt cancer and strengthen immune responses. In animal studies, the ...

Tiny Silica Particles Wiped out Aggressive Prostate Cancer in Mice

July 8, 2026 Tiny silica nanoparticles engineered to seek out prostate cancer caused tumor cells to self-destruct and supercharged the immune system in preclinical mouse studies. Combined with immunotherapy, the ...

Misfolded Insulin May Be Quietly Driving Diabetes

July 28, 2026 Researchers found that insulin-producing cells depend on a team of helper proteins to keep insulin production on track. When one key partner was missing, damaged proteins built up and the cells made ...

New Fentanyl Vaccine Blocks Deadly Overdoses Before They Start

June 13, 2026 A new experimental vaccine developed by Scripps Research could offer a powerful new way to prevent fentanyl overdoses by stopping the drug before it reaches the brain. Rather than targeting only ...

Butter and Margarine Look Similar but Their Chemistry Changes Everything

June 26, 2026 The battle between butter and margarine comes down to chemistry. Butter’s naturally occurring fats create rich flavors, golden browning, and flaky baked goods, while margarine’s modified plant ...

Scientists Discover Why Peach Fuzz Can Suddenly Make You Itch

July 14, 2026 A newly discovered network of fine hairs and specialized nerve cells appears to form a dedicated system for sensing mechanical itch, offering fresh insight into why chronic itching occurs. Because ...

AI-Designed Universal Coronavirus Vaccine Passes First Human Trial

June 5, 2026 Scientists have successfully tested an AI-designed universal coronavirus vaccine in humans for the first time, finding it to be safe and well tolerated. The vaccine generated immune responses against ...

This Tomato-Soy Juice Reduced Inflammation in Just Four Weeks

May 30, 2026 A specially formulated tomato-soy juice packed with natural plant compounds may help calm inflammation linked to obesity, according to a new clinical study. Healthy adults with obesity who drank the ...

Scientists Thought Brain Inflammation Was Driving Long COVID but the Scans Told a Different Story

May 28, 2026 A new brain imaging study has found no evidence of widespread brain inflammation in patients suffering from prolonged symptoms after COVID-19 infection. Instead, the most severe long COVID symptoms ...

Eating More Beans and Soy Could Slash High Blood Pressure Risk by Nearly 30%

May 26, 2026 Eating more beans, lentils, chickpeas, tofu, and other soy foods could be a surprisingly powerful way to fight high blood pressure. A major analysis of studies from around the world found that people ...

Natural Compound May Fight Rheumatoid Arthritis at Its Source

July 22, 2026 A plant-derived compound reduced swelling, inflammation, and joint damage in rats with rheumatoid arthritis. It also helped rebalance immune activity and improve the way certain fats were processed ...

Scientists Found the Hidden Switch Fueling Alzheimer’s Brain Inflammation

May 31, 2026 Scientists at Scripps Research have uncovered a molecular “switch” that appears to fuel the damaging brain inflammation seen in Alzheimer’s disease. They found that a protein called STING ...

Colon Cancer Breakthrough Keeps Patients Cancer-Free for Nearly 3 Years

May 6, 2026 A short burst of immunotherapy before surgery is delivering surprisingly powerful results for a specific type of colorectal cancer. Patients in a UK-led trial who received just nine weeks of ...