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Medical Xpress / 'The right patchwork': New studies examine tobacco regulation
Health warnings first appeared on cigarette packaging 60 years ago. Researchers and health professionals have described tobacco as addictive since the 1970s. Yet nearly 50 million people in the United States—one in five adults—still ...
Medical Xpress / How advance directives may affect end-of-life care
Advance directives document patient preferences for future care, including end-of-life. An analysis in the Journal of the American Geriatrics Society has found that older patients with an advance directive that had been uploaded ...
Phys.org / Universal free school meals may improve student behavior
A study published in Economic Inquiry provides new evidence that universal free school meals can meaningfully reduce out-of-school suspensions in both elementary and secondary schools.
Medical Xpress / Aerobic exercise may lessen the health effects of exposure to nanoplastics
Using female zebrafish as a model, researchers have found that aerobic exercise may influence various connections in the body to lessen the damaging health impacts of environmental nanoplastics. In the study, published in ...
Phys.org / Supernova dust may be behind one of JWST's biggest puzzles
Astronomers may have found an explanation for one of the biggest mysteries revealed by the James Webb Space Telescope (JWST): why so many galaxies in the early universe appear unexpectedly bright in ultraviolet light. The ...
Phys.org / Why meat-eating dinosaurs like T. rex evolved tiny arms
The evolution of tiny arms in several groups of meat-eating dinosaurs was likely driven by the development of strong, powerful heads, which were used to attack prey, according to a new study led by researchers at UCL (University ...
Phys.org / Why is almost everyone right-handed? The answer may lie in how we learned to walk
It is one of the strangest puzzles in human evolution. About 90% of people across every human culture favor their right hand—with no other primate species showing a population-level preference on this scale. Despite decades ...
Phys.org / Q&A: Is it time to expand our thinking about dark matter? A new study says yes
We may be more in the dark about dark matter than previously thought, according to a new analysis of distant galaxy clusters. Yale astrophysicist Priyamvada Natarajan, a leading theorist on the nature of black holes and dark ...
Phys.org / String theory is uniquely derived from basic assumptions about the universe, physicists show
If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by subatomic particles like protons and the quarks and gluons that make them up. You might think you hit ...
Phys.org / Webb discovers one of the universe's first galaxies
Scientists have discovered a galaxy as it was 13 billion years ago, 800 million years after the Big Bang. It contains possible evidence of the universe's first stars and is one of the most chemically primitive galaxies observed ...
Medical Xpress / Written in the eye: How the retina's biological age could help predict osteoporosis risk
Eyes, the high-resolution biological devices that help us visualize the outside world, are now being used as a portal to assess our internal health. Scientists have found that a closer evaluation of how one's retina is aging ...
Tech Xplore / Scientists develop near-invisible solar cells that could turn windows into power generators
Imagine a car whose windows and sunroof can help top up its battery while parked under the sun, or a pair of smart glasses whose lenses can harvest light to power built-in electronics.
