Persistent inflammation in the gut, lungs and skin might lead to Alzheimer's disease, but lifestyle choices - from getting vaccinated to eating well - can keep inflammation under control
The Alzheimer’s field is being turned on its head as mounting evidence points to the disease beginning outside the brain many years before symptoms start. This may mean we have to totally rethink how we approach preventing and treating the condition
This International Women's Day, we should prioritise groundbreaking research into women's health, such as strengthening the reproductive system's natural defences, says Anita Zaidi
Microplastics have been found accumulating everywhere from our water to our body tissues, but many of the claims have come under fresh scrutiny. Chelsea Whyte cuts through the research to tell you whether you really need to worry
Analysing the births of a Utah family over seven generations has revealed that their disproportionate number of boys could be caused by a selfish Y chromosome
The microbes that live in our mouth and gut may influence whether an allergic reaction to peanuts is mild or life-threatening, and could be harnessed to ward off a severe attack
Magnesium has been called the “super mineral of the moment”, hailed for its supposed benefits for the brain and body. But columnist Alice Klein finds that the evidence is lacking for many of these claims
Frailty can typically only be lessened through lifestyle changes, but a stem cell therapy seems to target the underlying causes of the condition, boosting the mobility of frail older people
In this extract from Daisy Fancourt's Art Cure, the March read for the New Scientist Book Club, we learn about how art classes transformed life for Russell after he had a stroke
The congenital condition spina bifida is often treated surgically in the womb, but many children still go on to have mobility issues. The addition of a patch made up of stem cells from donated placentas could improve their long-term outcomes
Feedback is excited to learn that University of Maryland researchers are measuring farts in a bid to build a Human Flatus Atlas, a project that seems destined for an Ig Nobel
The drug rapamycin has been held up for its life-extending properties, but whether this treatment – or fasting – actually adds years to your life isn't guaranteed
People often focus on the bad side effects of vaccines, but they can have some great side effects too, says columnist Michael Le Page. They don’t just protect us from contagious diseases but can also lower the risk of dementia and heart attacks
A growing trend called “fibermaxxing” is putting dietary fiber in the spotlight—and for good reason. Fiber plays a powerful role in keeping the body healthy, from supporting digestion and feeding beneficial gut microbes to helping regulate blood sugar and cholesterol. Researchers say getting enough fiber may even lower the risk of conditions like obesity, diabetes, and certain cancers.
Scientists are exploring a new way to harness the medical promise of psychedelic compounds without the mind-bending side effects. Researchers created modified versions of psilocin — the active form of psilocybin from “magic mushrooms” — that still target key serotonin pathways linked to depression and other brain disorders but appear to cause far fewer psychedelic-like effects.
Scientists have uncovered a surprising new role for little-known brain cells called tanycytes that may influence the development of Alzheimer’s disease. These specialized cells appear to help remove toxic tau protein from the brain by transporting it from the cerebrospinal fluid into the bloodstream. When tanycytes become damaged or dysfunctional, tau can accumulate in the brain, a hallmark of Alzheimer’s.
Scientists have revealed how the body’s microscopic cold sensor, TRPM8, detects both chilly temperatures and the cooling effect of menthol. The discovery finally shows how the sensation of “cool” works at the molecular level—and could inspire new treatments for pain and eye disorders.
Scrolling on your phone while sitting on the toilet might be doing more harm than you think. A new study found that people who use smartphones during bathroom visits had a 46% higher risk of hemorrhoids compared to those who don’t. Researchers discovered that phone users tend to spend significantly longer on the toilet, often getting distracted by news or social media, which may increase pressure on anal tissues.
Researchers have uncovered a surprising molecular chain reaction in the brain that may play a role in some forms of autism. The study suggests that nitric oxide, a tiny signaling molecule normally involved in fine-tuning communication between brain cells, can sometimes trigger a cascade of changes inside neurons. When nitric oxide activity rises, it can alter a protective protein called TSC2, weakening an important cellular brake and allowing the mTOR pathway, which controls growth and protein production, to become overactive.
Scientists studying 1,300 golden retrievers have uncovered genetic clues explaining why some dogs are more anxious, energetic, or aggressive than others. Remarkably, several of the same genes linked to canine behavior are also tied to human traits like anxiety, depression, and intelligence. The discovery suggests dogs and humans share biological roots for emotions and behavior. Understanding these links could help owners better interpret their pets’ reactions and even improve training and veterinary care.
Mayo Clinic researchers have identified a rare mutation in the MET gene that can directly cause metabolic dysfunction-associated steatotic liver disease. The mutation disrupts the liver’s ability to process fat, leading to inflammation, scarring, and potentially cirrhosis. The discovery began with a father and daughter who had the disease without typical risk factors. Large-scale genomic data suggests similar rare variants may quietly contribute to the disease in many more people.
A newly identified protein may hold the key to preventing diabetic blindness. Researchers discovered that LRG1 triggers the earliest damage in diabetic retinopathy by constricting tiny retinal blood vessels and reducing oxygen supply. In mice, shutting down this protein stopped the damage before it could take hold. The finding could pave the way for treatments that protect vision before symptoms ever begin.
A mysterious form of plague that spread across Eurasia thousands of years before the Black Death has finally revealed a crucial clue. Scientists analyzing ancient DNA discovered the bacterium Yersinia pestis in a 4,000-year-old domesticated sheep from a Bronze Age settlement in the Ural Mountains—the first time the pathogen has ever been found in a non-human host from that era. Because this early strain couldn’t spread through fleas like the medieval plague, researchers have long puzzled over how it traveled so widely.
Researchers have discovered a new way to increase a key brain protein damaged in Rett syndrome, a rare genetic disorder that affects thousands of children worldwide. Early studies in mice and patient-derived cells show the approach can restore normal brain cell function, raising hopes for future therapies.
CBD and CBG, two non-intoxicating cannabis compounds, may help combat fatty liver disease by boosting liver energy reserves and restoring cellular cleanup systems. In the study, both compounds improved blood sugar control and reduced harmful lipids linked to fatty liver disease. Researchers say the findings point to a promising new plant-based approach to treating metabolic liver disorders.
President Donald Trump’s immigration crackdown in Minneapolis forced families into hiding and catalyzed informal medical networks to deliver critical health care services.
Cancer treatments, disease outbreaks, addiction science: Scientists say an exodus from the National Institutes of Health will harm the nation's ability to respond to illness.
Government data shows the National Institutes of Health lost about 4,400 people — more than 20% of its staff — as the Trump administration slashed the federal workforce. Hear from six scientists on why they walked out the door and the work they left behind.
Iowa patient advocates say that in the face of federal Medicaid cuts, the state is quietly reducing in-home services that help people avoid being institutionalized. National groups are bracing for similar cuts elsewhere.
Trabajadores de salud dicen que los agentes de inmigración siguen apostados en los estacionamientos de hospitales. Y drones sobrevuelan zonas agrícolas en las afueras de Minneapolis, donde inmigrantes somalíes y latinos se han establecido en los últimos años.
A year after Sen. Bill Cassidy, a Louisiana Republican, warily cast the vote ensuring Robert F. Kennedy Jr.’s ascension to Health and Human Services secretary, his life’s work — in medicine and in politics — is unraveling.
This month is 40 years since host Julie Rovner, chief Washington correspondent for KFF Health News, began reporting on health policy in Washington. To mark the anniversary, Rovner is joined by two longtime sources to discuss what has — and has not — changed since 1986.
2026 has been a challenging year to buy health insurance. Contributing factors include changes to the Medicaid program and hikes to the cost of Obamacare plans. But doctors and researchers say there are ways people without insurance can find affordable care.
