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Medical Xpress / Salivary cortisol patterns linked to cognitive decline over 11 years
In a study published in the journal JAMA Network Open, an irregular pattern and consistently higher levels of the stress hormone cortisol in saliva were associated with cognitive decline later in life. Black participants ...
Medical Xpress / Antidepressant withdrawal, not relapse, linked to mood changes
When people stop taking antidepressants, they can feel terrible—their mood can plummet and anxiety can spike. But are these symptoms caused by withdrawal, or are they signs of a relapse?
Phys.org / Wild dogs make the longest recorded journey of any terrestrial mammal in Africa
African wild dogs (Lycaon pictus) travel incredibly long distances to search for a mate and new places to breed. They typically embark on these mammoth treks as young adults and often face numerous hazards along the way. ...
Tech Xplore / When AI agents cheat on math problems, others blow the whistle
AI is advancing rapidly. One of the major shifts in the field is that, instead of single chatbots performing individual tasks, teams of autonomous agents work together by communicating with each other, sharing tools and accessing ...
Phys.org / Cuttlefish suckers reveal how they grip rough prey—and could inspire better technology
Cephalopods are a group of soft-bodied marine mollusks that include cuttlefish, octopuses, squid and nautiluses. Many of these mollusks have muscular suckers on their arms that allow them to seize prey or grip other surfaces ...
Phys.org / How to tackle persistent drought: Lessons from British Columbia
British Columbia has endured another extreme drought, with damaging impacts across the province, including a watershed emergency declared by the Syilx Okanagan Nation, 70% water-use reductions for agricultural producers in ...
Phys.org / Fast-food brands may build loyalty through emotional experiences, not service alone
A study of more than 800 fast-food customers suggests that loyalty to a brand is shaped not only by satisfaction with the product or service but also by customers' emotional experiences. The study, published in the International ...
Phys.org / Q&A: Tiny spores for a big critical minerals challenge
Scientists at the Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL) are exploring how durable, customizable bacterial spores could capture rare earth elements (REE) from acid mine drainage and other metal-containing ...
Medical Xpress / Dementia survey finds caregivers overwhelmed as one-third provide 70 hours of care
New national survey findings show that while many Australians living with dementia report positive well-being and support from family and friends, the pathway to diagnosis can be complex and support services can be difficult ...
Medical Xpress / Survey: Older adults have strong interest in dementia vaccine
A large majority of older adults say they would be interested in receiving a vaccine that would significantly reduce the risk of dementia, according to new research from the USC Schaeffer Center for Health Policy & Economics.
Phys.org / Nepal could show the world how to recover sustainably from a major disaster
With chances of further sensational hydropower tunnel rescues dimming, the devastating ice-rock avalanche in August at the Nepal-Tibet border and catastrophic floods downstream are no longer making global headlines.
Phys.org / A molecular bridge connects two signaling pathways critical for pollen development
Cells rely on complex signaling networks in which different molecular pathways communicate with one another. Small GTPases act as molecular switches in these networks, controlling diverse cellular processes such as intracellular ...
