Health News

Air pollution isn’t just bad for your lungs—it may be eroding your brain. In a sweeping review covering nearly 30 million people, researchers found that common pollutants like PM2.5, nitrogen dioxide, and soot are all linked to a significantly higher risk of dementia. The most dangerous? PM2.5—tiny particles from traffic and industry that can lodge deep in your lungs and reach your brain.

Walking 7000 steps a day may be just as powerful as hitting the much-hyped 10,000-step goal when it comes to reducing the risk of early death and disease. A sweeping global review of 57 studies shows that 7000 steps per day slashes the risk of dying early by nearly half—and brings major benefits across heart health, dementia, depression, and more. The bonus? Even walking from 2000 to 4000 steps per day brings measurable improvements. For millions of people, this study redefines what it means to “move enough.”

A groundbreaking study has revealed that the mass administration of ivermectin—a drug once known for treating river blindness and scabies—can significantly reduce malaria transmission when used in conjunction with bed nets.

Fermenting stevia with a banana leaf-derived probiotic turns it into a powerful cancer-fighting agent that kills pancreatic cancer cells while sparing healthy ones. The secret lies in a metabolite called CAME, produced through microbial transformation.

What if we could predict obesity before it ever takes hold? A global team has created a genetic test that forecasts a child’s risk of adult obesity before age five—years before other factors kick in. By analyzing data from over five million people, their polygenic risk score doubles the predictive power of previous tools. While genetics isn’t destiny, those with higher genetic risk respond better to weight loss interventions but may regain weight quickly. The tool isn’t perfect, it performs far better in people of European ancestry, but it’s a game-changer in early prevention.

Millipedes, often dismissed as creepy crawlies, may hold the secret to future painkillers and neurological drugs. Researchers at Virginia Tech discovered unique alkaloid compounds in the defensive secretions of a native millipede species. These complex molecules, which cause disorientation in ants, interact with human neuroreceptors linked to pain and cognition. By decoding these natural chemical defenses, scientists could open a new path toward innovative drug therapies, though challenges remain in producing the compounds at scale.

A virus from humble black-eyed peas is showing extraordinary promise in the fight against cancer. Unlike other plant viruses, the cowpea mosaic virus (CPMV) can awaken the human immune system and transform it into a cancer-fighting powerhouse, without infecting human cells. By comparing it to a similar, but ineffective, virus, researchers uncovered that CPMV uniquely triggers potent interferons and immune responses, making it a low-cost, plant-grown immunotherapy on the fast track toward clinical trials.

A breakthrough AI system is revolutionizing cancer immunotherapy by enabling scientists to design protein-based keys that train a patient s immune cells to attack cancer with extreme precision. This method, capable of reducing development time from years to weeks, was successfully tested on known and patient-specific tumor targets. Using virtual safety screenings to avoid harmful side effects, the platform represents a leap forward in personalized medicine.

A new study reveals that swapping a typical nighttime carbohydrate snack for pistachios may beneficially alter gut bacteria in people with prediabetes. Conducted by Penn State researchers, the 12-week clinical trial found that pistachio consumption increased beneficial gut microbes like Roseburia and reduced harmful ones such as Blautia hydrogenotrophica. These microbiome changes could potentially support metabolic health and slow the progression to Type 2 diabetes. While more research is needed to confirm health outcomes, this study positions pistachios as a promising late-night snack with microbiome-boosting potential.

Scientists at Princeton and the Simons Foundation have identified four biologically distinct subtypes of autism, using data from over 5,000 children and a powerful new computational method. These subtypes—each with unique traits, developmental paths, and genetic signatures—promise to revolutionize how we understand, diagnose, and treat autism.