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Medical Xpress / Exhaust fans and air purifiers may cut adult asthma flare-ups, study finds

For adults with asthma, having fans, air purifiers or other ventilation and exhaust systems—especially in kitchens and bathrooms—is one of the best ways to reduce the risk of flare-ups at home.

Feb 21, 2026 in Pediatrics
Phys.org / Twelve-year tracking suggests killer whales do not always drive shark disappearances

While killer whales (Orcinus orca) can trigger the immediate departure of white sharks (Carcharodon carcharias), extended absences from their aggregation sites are also part of the sharks' natural behavior, new research reveals.

Feb 18, 2026 in Biology
Phys.org / Scientists unlock a massive new 'color palette' for biomedical research by synthesizing non-natural amino acids

Ozempic has been making headlines for its remarkable success in treating obesity and diabetes. Yet it is just one in a rapidly growing class of drugs called peptide therapeutics that sits between small molecules (like aspirin) ...

Feb 19, 2026 in Chemistry
Tech Xplore / New perspective charts path to next-generation water and energy membranes

When you turn on a faucet, charge an electric vehicle or use products made with clean hydrogen, you may not realize that membranes—ultrathin films perforated with pores too small to see—make these modern processes possible. ...

Feb 21, 2026 in Energy & Green Tech
Phys.org / Nanodevice produces continuous electricity from evaporation

A nanodevice developed at EPFL produces an autonomous, stable current from evaporating saltwater by using heat and light to control the movement of ions and electrons. Previously, researchers in the Laboratory of Nanoscience ...

Feb 19, 2026 in Nanotechnology
Medical Xpress / Red blood cells soak up sugar at high altitude, protecting against diabetes

Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes than people living closer to sea level. But the mechanism of this protection has remained a mystery. ...

Feb 19, 2026 in Endocrinology & Metabolism
Medical Xpress / New dietary guidelines prioritize 'real food'—but low-income pregnant women can't easily obtain it

The federal government's message in its new Dietary Guidelines for Americans, released in January 2026, couldn't be simpler: "Eat real food."

Feb 21, 2026 in Health
Phys.org / Honey bees navigate more precisely than previously thought

A team from the University of Freiburg led by neurobiologist and behavioral biologist Prof. Dr. Andrew Straw studied the flight behavior of honey bees. Using a drone, the researchers tracked honey bees as they flew between ...

Feb 17, 2026 in Biology
Tech Xplore / Why AI may overcomplicate answers: Humans and LLMs show 'addition bias,' often choosing extra steps over subtraction

When making decisions and judgments, humans can fall into common "traps," known as cognitive biases. A cognitive bias is essentially the tendency to process information in a specific way or follow a systematic pattern. One ...

Feb 15, 2026 in Computer Sciences
Phys.org / What 'housane' rings are and why a light-powered route may matter for drugs

When developing new drugs, one thing is particularly important: finding and producing the right molecules that can be used as active ingredients. The key elements of some drugs, such as penicillin, are small, tri- or quadripartite ...

Feb 19, 2026 in Chemistry
Medical Xpress / Fiber-free processed foods hit emotional memory fast, especially in older brains

Past studies in animals have shown that a highly processed diet is linked to memory problems and inflammation in the aged brain—and the effect can happen fast, after just three days of poor eating.

Feb 19, 2026 in Neuroscience
Medical Xpress / Do you need to worry about thyroid nodules?

Your thyroid is a small, butterfly-shaped gland in the front of your neck. Its main job is to produce thyroid hormones, which help regulate your body's metabolism and control your heart rate, body temperature, growth and ...

Feb 21, 2026 in Oncology & Cancer