Big cities often promise excitement, but they also bring dirty air. Now a large study in the UK is asking if breathing that air for years might harm the nerves in our bodies. Scientists tracked thousands of adults over time to see whether heavy exposure to tiny floating particles and gases from traf
The brain has a special wall called the blood‑brain barrier that keeps harmful things out. In diseases like Alzheimer’s and Parkinson’s, this wall gets damaged and lets troublemakers in, which makes the brain hurt more. New tiny machines called nanoparticles are learning how to fix that wall and bri
Recent science shows that a simple gas—hydrogen—is more than just a building block of water. Because it is so small, the molecule can slip through cell walls and even the blood‑brain barrier, reaching places that many medicines cannot. Researchers have tested hydrogen in a variety of ways: breathing
The Russian president signed a new order that reshapes how animal vaccines are made after a cattle outbreak caused thousands of deaths in Siberia. The event led to protests and demands that top officials step down, a rare reaction in wartime Russia. The decree combines several state‑owned firm
Parkinson’s disease slowly changes how the brain works. It starts when tiny cells that make dopamine begin to disappear. Dopamine is a key messenger in the brain that helps control movement. Without enough of it, people often feel stiff, move slowly, and shake when resting. These problems grow worse
A 24‑year‑old former college basketball star from Louisville began feeling short of breath one November. Doctors first thought she had pleurisy, an inflammation of the lung lining, and gave her anti‑inflammatory pills. Her condition worsened; she sweated heavily at night, couldn’t lie flat without s
Alopecia areata is a long‑term autoimmune condition that causes hair to fall out without scarring. The problem starts when the immune system attacks growing hair follicles, called anagen follicles. Scientists have discovered that Janus kinase (JAK) inhibitors can stop this harmful signaling, givi
The new study shows that when temperatures drop, heart‑related deaths rise sharply across the United States. Researchers looked at data from 2000 to 2020 in 819 counties, covering about 80 % of adults over 25. They found that the safest temperature for heart health is around 23 °C (74 °F). When temp
The experiment began with a curious question: how do tiny mosquitoes spot us? A professor and a college student tried to answer it by putting the student in a room full of insects. The first attempt used a mesh suit, but it didn’t stop the mosquitoes from biting. After many painful stings, the team
The number of young women dying from high blood pressure has more than quadrupled over the last twenty years, a new study shows. In 2023, nearly five women out of every hundred thousand in the 25‑to‑44 age group lost their lives to heart disease caused by high blood pressure, compared with just one
