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Phys.org / Sprint or marathon? Aging muscle stem cells shift from rapid repair to long-term survival
Aging muscles heal more slowly after injury—a frustrating reality familiar to many older adults. A UCLA study conducted in mice reveals an unexpected cause: Stem cells in aged muscle accumulate higher levels of a protein ...
Phys.org / SpaceX grounds Falcon 9 missions, could impact ISS launch
NASA said Tuesday its next crew rotation to the International Space Station could be delayed after SpaceX announced it was grounding flights of its Falcon 9 rocket to investigate an unspecified issue.
Medical Xpress / Initiation of hormone therapy after age 65 remains risky but still works for some women
Hormone therapy (HT) has proven effective for managing hot flashes and other common menopause symptoms, but questions remain about long-term safety, especially in women aged older than 65 years. A new study evaluated the ...
Phys.org / Plastic pollution promotes hazardous water conditions, new study finds
Dangerous concentrations of algae such as "red tides" have been consistently emerging in locations around the world. A region in Southern Australia is experiencing a nine-month toxic algae bloom that spans thousands of miles ...
Phys.org / New briefing paper outlines concerns around TikTok moderation policies political influence, and election integrity
A new briefing paper produced by the London Social Media Observatory (LSMO) at Royal Holloway and Westminster Foundation for Democracy (WFD) details emerging risks to democratic participation on TikTok. The LSMO and WFD brought ...
Phys.org / AI enables a who's who of brown bears in Alaska
A team of scientists from EPFL and Alaska Pacific University has developed an AI program that can recognize individual bears in the wild, despite the substantial changes that occur in their appearance over the summer season. ...
Medical Xpress / 'Personal lives' of lung cancer cells help predict response to treatment
University of Queensland researchers who mapped cancer cell "neighborhoods" in the most common type of lung cancer have found cell metabolism plays a critical role in determining how lung cancer patients will respond to immunotherapy. ...
Medical Xpress / 1 in 4 young people using psychotropic drugs are taking dangerous combinations
Use of medications for mental health and behavioral conditions among children and young adults increased steadily for two decades, and about one in four young people taking these medicines were prescribed a combination that ...
Phys.org / Gray wolf crosses into Nevada after breaking from California pack
A spotted gray wolf has left his California pack and trotted across Silver State lines, wildlife biologists say.
Medical Xpress / Improving blood flow to the brain in arteries with plaque does not improve cognitive skills
Improving blood flow to the brain by opening a narrowed neck artery may not improve patients' cognitive skills, according to a preliminary late-breaking science presentation at the American Stroke Association's International ...
Medical Xpress / Why a high school reunion might lift your mood: Study links nostalgia to gratitude
Did you skip your last high school reunion? If so, you may want to reconsider when the next anniversary rolls around. The experience could lead to increased feelings of gratitude, according to a new study led by Jeffrey Green, ...
Phys.org / Tibet's tectonic clash: New satellite view suggests weaker fault lines
A study on tectonic plates that converge on the Tibetan Plateau has shown that Earth's fault lines are far weaker and the continents are less rigid than scientists previously thought. This finding is based on ground-monitoring ...
