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Most people treat the common cold as a short-lived inconvenience. Symptoms appear, peak, and then fade within a week. But what if the virus does not actually leave when the symptoms disappear? New research from the University of São Paulo suggests that the rhinovirus may stay inside the body much longer than expected. Instead of clearing out completely, it may settle quietly in specific tissues, creating a hidden phase of infection. Virus hides in the throat Scientists focused on [...]

Something surprising is happening inside your body right now. Your gut is constantly adapting, changing, and even making smart decisions to protect your health. Scientists from the State University of Campinas ( UNICAMP ) in Brazil have uncovered a fascinating process inside the intestine. This discovery shows how deeply connected gut bacteria are to how your body functions. Gut bacteria keep balance The large intestine is packed with trillions of bacteria that form the gut microbiota. [...]

Your brain does not age in isolation. The air you breathe, the places you move through, and the conditions you live in may all influence how your brain ages. A new global study shows that brain health depends not just on personal habits, but on the world around you. How the brain ages Scientists from the Global Brain Health Institute at Trinity College Dublin studied brain aging across 34 countries. The researchers explored how different environments affect the biological age of the [...]

Stress is a constant presence during the teen years, which are often intense, emotional, and unpredictable. That is not just a social observation – it’s also a biological fact. The brain is still under construction during adolescence, and that makes it more sensitive to stress in ways that can last well into adulthood. A new study using mice shows that stress during these early years does more than cause temporary strain. It can leave a lasting mark on how the brain works. The [...]

What if the fish on your plate carried hidden medicines from polluted rivers? This idea may sound unusual, but scientists have found clear evidence that it is happening. A study by the Center for Nuclear Energy in Agriculture at the University of São Paulo shows that antibiotics are entering rivers, staying in the environment, and even reaching fish. Researchers led by Patrícia Alexandre Evangelista, with support from FAPESP, studied the Piracicaba River in Brazil. The study not only [...]

A new study has found that a ketogenic diet can restore a major training benefit that high blood sugar had shut down in mice, allowing exercise to raise oxygen use again. That finding recasts the problem of exercise resistance, suggesting that metabolic control may decide whether endurance training can fully take hold. Where benefits stall In mice with high blood sugar, aerobic training no longer produced the usual rise in oxygen use described in the paper. Tracking that failure, [...]

In one region of Brazil, a river that supports local life and food is also carrying traces of something unexpected: antibiotics. These drugs, used every day to treat infections in people and animals, don't always stay where they're meant to. They can slip into waterways through sewage, farming runoff, and aquaculture. Over time, they build up. And when they do, the effects ripple through the ecosystem. How antibiotics build up in river systems Researchers studying the [...]

The ocean has always shown clear signs of human impact. You see plastic floating, oil on the surface, and rising temperatures. Those are easy to notice. But there's another change happening quietly, and it's only now becoming clear. Scientists studying seawater from around the world found something worrying. A large share of what we call organic matter in coastal oceans now comes from human-made chemicals. You won't see these drifting on the surface. They're dissolved in [...]

Scientists have discovered that chimpanzees consistently choose crystals over ordinary rocks, selecting and closely inspecting them when both lie within easy reach. That attraction mirrors a behavior documented in human ancestors who collected similar stones long before they had any known practical use. On matching pedestals near Madrid, a 14-inch clear crystal stood beside an ordinary rock of similar size. Watching the animals interact, Professor Juan Manuel García-Ruiz of the [...]