Author: healthadmin
A new study reveals that while your menstrual cycle influences the function of your heart’s autonomic nervous system, your physical fitness, motivation, and overall mood remain significantly stable throughout the month. Research: Effects of the menstrual cycle on the autonomic nervous system, muscle strength, and mood states. Image credit: Pormezz/Shutterstock.com recent scientific report This study investigated the influence of menstrual cycle stage on autonomic cardiac function, neuromuscular performance, and psychological status in naturally menstruating women. Menstrual cycle and physiology The menstrual cycle (MC) is a recurring physiological process characterized by periodic fluctuations in pituitary hormones such as follicle-stimulating hormone (FSH)…
Remarkable fossils discovered in a cave near Waitomo on New Zealand’s North Island are giving scientists an unprecedented look into a long-vanished ecosystem. Researchers in Australia and New Zealand have discovered fossilized remains of ancient birds and frogs that lived about a million years ago, including a previously unknown relative of the iconic kakapo. The discovery marks the first time scientists have recovered a large collection of terrestrial vertebrate fossils from this period in New Zealand’s history. The cave contains fossils of 12 bird species and four frog species, providing a rare snapshot of the world as it existed hundreds…
By Will Atwater, North Carolina Health News June 23, 2026 Written by Will Atwater Science is catching up to this concern.The EPA has designated microplastics as a priority pollutant group for the first time. Policy progress has been slow in North Carolina.A statewide plastic bag fee was rejected by the General Assembly. Advocates say politics has not yet matched the urgency. Change may start closer to home than you think.Experts say meaningful progress on plastic waste typically starts at the local and state level. In recent years, environmental activists and researchers in North Carolina have raised further red flags about…
Even after the researchers took into account genetic and family-related factors, children who were exclusively breastfed for long periods of time showed slightly fewer symptoms of ADHD from ages 3 to 8, suggesting that early breastfeeding patterns may play a small but meaningful role in neurodevelopment. Study: Breastfeeding and the development of attention-deficit/hyperactivity disorder symptoms across childhood. Image credit: Pixel-Shot/Shutterstock.com According to a recent study published in biological psychiatrybreastfeeding was associated with a modest reduction in symptoms of childhood attention-deficit/hyperactivity disorder (ADHD). It turns out that breastfeeding may improve ADHD ADHD is one of the most common neurodevelopmental disorders in…
NASA’s upgraded Cold Atom Lab is back up and running on the International Space Station, giving researchers a powerful new way to probe the fundamental properties of matter and advance the development of future quantum technologies. This facility uses the station’s microgravity environment to conduct experiments that cannot be done on the ground. Quantum science focuses on the behavior of matter and energy at very small scales, such as atoms, electrons, and particles of light. Atoms are often pictured as tiny spheres colliding with each other, but the quantum world is much stranger. Atoms behave like waves, appearing in multiple…
More than 4.5 billion years ago, a giant world potentially as large as the moon or Mars was traveling around a young sun before being shattered into pieces by a violent collision. Scientists have now announced that they have discovered the first direct evidence that this long-lost planetary embryo, known as a protoplanet, once existed. Discoveries recorded in the diary Earth and Planetary Science Lettersindicating a different type of planetary evolution than previously recognized. “It’s hard to believe that there was ever a world this big,” said Aaron Bell, an assistant professor in the Department of Earth Sciences at the…
The herbicide paraquat, which is banned in more than 70 countries, will remain legal in Australia despite Parkinson’s disease groups, scientists and neurologists claiming there is a strong correlation between direct exposure and the development of Parkinson’s disease.The Australian Pesticides and Veterinary Medicines Agency (APVMA) on Tuesday announced its final decision after decades of investigation into the highly toxic paraquat and related chemical diquat. Both are widely used in Australian agriculture.Regulators will continue to allow its use, but with stricter conditions to reduce the risk of exposure to farm workers, birds and mammals.Paraquat is used in large acre agriculture, especially…
In a large cohort of professional male athletes, higher vitamin D status was tracked with lower atherogenic lipid markers, raising new questions about metabolic health beyond training alone. Study: Vitamin D status and atherogenic lipid profile including lipoprotein(a) in elite athletes. Image credit: Vink Fan / Shutterstock In a recent study published in the journal nutrientsGerman researchers investigated the association between serum 25-hydroxyvitamin D levels and atherogenic lipid parameters, including lipoprotein(a), in male professional athletes. background Did you know that even highly trained athletes can develop unfavorable lipid profiles that can impact long-term cardiovascular health? Vitamin D is critical for…
A new crossover study suggests that daily L-tyrosine is well tolerated in healthy men, but researchers caution that safety at higher doses over four weeks and in a more diverse group has not yet been tested. Study: Evaluation of the safety and tolerability of L-tyrosine supplementation in healthy adult men: a randomized crossover trial. Image credit: StudioMolekuul / Shutterstock Recent research published in journals nutrients evaluated the tolerability and safety of L-tyrosine (L-Tyr) supplementation in healthy adult Japanese men. L-Tyr is primarily derived from dietary and endogenous protein recycling. Found in common foods such as meat, dairy products, and soy…
A 50-year study has found that the global spread of Ebola is far more limited than public fears suggest, and that source control, infection prevention, and rapid response remain the strongest defenses. Rapid communication: The risk of global spread of Ebola virus is low: Epidemiology of Ebola cases outside Africa from 1976 to May 2026. Image credit: Peterschreiber.media / Shutterstock In a recent study published in the journal euro monitoringResearchers have reassessed the global threat of Ebola virus infection. This study analyzed historical data from 1976 to May 2026 to understand whether the recent outbreak of Bundibugyo virus disease caused…