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Medical Xpress / Rising CO₂ levels are reflected in human blood. Scientists don't know what it means
Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that figure sits above 420 ppm, higher than at any point in the history of our species.
Medical Xpress / Research reveals how blood flow directs vessel health at the molecular level
How do blood vessels stay strong, flexible, and responsive to the body's changing need for oxygen and nutrients? The answer lies not only in biology—but also in physics. Researchers at Åbo Akademi University and the InFLAMES ...
Medical Xpress / How psychedelics push your brain to dream while awake: New study
A new study in mice suggests psychedelics make the brain more likely to "see" images from memory rather than what's actually in front of it.
Phys.org / Antarctic sea ice rebounds in 2026, nearing average after four years
Antarctic sea ice coverage has likely rebounded this year, coming closer to its annual summer average after four years of extreme lows, US scientists said Monday.
Phys.org / New study of global reef growth over past 12,000 years offers insights into impact of rising ocean temperatures
Coral reefs over the past 12,000 years grew best when the ocean temperature was 77 degrees Fahrenheit (25 degrees Celsius), according to new research from Florida Tech. Recent ocean warming and regional and local disturbances ...
Medical Xpress / Teenagers are getting far less sleep now than they did in late 2000s, finds new study
Eight hours of sleep used to be the norm, and all-nighters with only a few hours of rest were rare among teenagers. In recent years, however, there has been an alarming decline in sleep duration. It has reached a point where ...
Phys.org / Centuries of net-negative emissions are required to secure a safe climate future, two studies suggest
Two new studies conclude that stabilizing long-term climate risks will require sustained net-negative carbon dioxide (CO₂) emissions for centuries. Approaching the problem from distinct perspectives—legal and technological ...
Phys.org / Cloud-ready simulation framework enables capture of molecular binding pathways
Researchers at the Center for Computational Sciences, University of Tsukuba, have developed an accessible platform to overcome the limitations of conventional static docking simulations, offering new avenues for education, ...
Phys.org / Seals and sea lions provide clues to evolution of vocalization
Neuroscientists have uncovered new insights into a key evolutionary question: Why can humans talk when most animals can't? The journal Science published the research led by Emory University and the New College of Florida. ...
Medical Xpress / Heat boosts antibiotics' effectiveness against prosthetic infections
Heat generated by alternating magnetic fields (AMF) helps common antibiotics work better against prosthetic joint infections, researchers at UT Southwestern Medical Center found. The study, published in Scientific Reports, ...
Tech Xplore / No battery needed: Single organic device can act as both indoor solar cell and photodetector
Next-generation optoelectronic systems (devices that convert light to electrical energy) leverage organic semiconductor-based indoor energy-autonomous architectures for cutting-edge applications. Notably, organic semiconductors ...
Phys.org / Ancient stone jars shows how tree cover shapes freshwater ecosystems over millennia
Researchers at McGill University used 2,000-year-old stone jars in Laos to observe long-term ecological processes, enhancing understanding of how strongly tree cover shapes small freshwater ecosystems. Their findings stand ...
