Author: OMN AI
A large new study in the United States has found that children aged four and five diagnosed with attention-deficit/hyperactivity disorder (ADHD) are often prescribed medication much sooner than guidelines recommend. Medical advice states that young children should first undergo six months of behavioural therapy before starting medication, but the study shows this is frequently bypassed. The research, published in JAMA Network Open, included data from more than 9,700 children. It revealed that 42.2% of young patients were prescribed ADHD drugs within one month of diagnosis, while only 14.1% began medication after six months. Dr Yair Bannett, lead author and assistant…
A global systematic review has found that the shingles vaccine is linked to an 18% lower risk of heart attack or stroke in adults. The pioneering analysis, which combined data from 19 studies including observational research and randomized trials, suggests that vaccination against herpes zoster may provide protective cardiovascular benefits in addition to preventing shingles. Experts say the effect could be related to reducing inflammation caused by shingles, which can contribute to heart and circulatory problems. While the vaccine is currently recommended primarily for older adults or those with weakened immune systems, the findings raise the possibility of broader benefits…
Sharks could struggle to feed effectively in the future due to ocean acidification, potentially disrupting marine ecosystems, a new study warns. Shark jaws carry multiple rows of teeth, with new ones constantly replacing those lost. However, increasingly acidic oceans are damaging teeth faster than they can be replaced, putting sharks at risk of feeding difficulties. Ocean acidification occurs as carbon dioxide is absorbed by seawater, lowering pH levels. By 2300, oceans could fall from a pH of 8.1 to 7.3, a change with “profound implications for marine organisms,” according to researchers. To study the effect, scientists exposed 60 naturally shed…
A study in the Colorado Rockies has found that wild bees strategically select flowers to balance their intake of protein, fats, and carbohydrates. Researchers tracked eight species of bumblebees over eight years, collecting pollen from the flowers they visited and analyzing its nutrient content. Protein levels in pollen varied widely, from 17% to 86%, and shifted throughout the season, with spring flowers richer in protein and late-summer blooms higher in fats and carbohydrates. The study also revealed distinct nutritional niches among bee species. Larger bees with longer tongues favored protein-rich pollen, while smaller bees with shorter tongues sought out pollen…
For the first time, surgeons have successfully transplanted a genetically modified pig lung into a brain-dead human recipient, where it remained functional for nine days. The study, reported in Nature Medicine, represents a significant step in xenotransplantation—a technique aimed at addressing the global organ shortage, which currently meets only about 10% of demand, according to the World Health Organization. Procedure and Findings The transplant involved the left lung from a Chinese Bama Xiang pig with six genetic modifications, implanted into a 39-year-old brain-dead male. Researchers found the lung remained viable and functional over 216 hours, avoided hyperacute rejection, and showed…
New research suggests that following a Mediterranean-style diet could help reduce the risk of dementia, even for individuals with high genetic susceptibility. The diet—rich in vegetables, fruits, nuts, whole grains, and low in red and processed meats—was linked to slower cognitive decline over a 30-year period. The study highlights that lifestyle choices can partially offset genetic risk factors, providing hope for preventive strategies. APOE4 Gene and Dietary Impact One of the strongest genetic risk factors for Alzheimer’s disease, the most common form of dementia, is the APOE4 gene variant. Having one copy of APOE4 triples the risk, while two copies…
Antarctica is facing increasing pressure from human activity as tourism and research expand. Visitor numbers have surged from fewer than 8,000 annually in the 1990s to over 124,000 in 2023–24, with projections suggesting up to 450,000 by 2034. Researchers from Chile, Germany, and the Netherlands studied 2,000 kilometres of the continent over four years and found toxic metals such as nickel, copper, and lead in human-frequented areas are now ten times higher than four decades ago. Tourism alone contributes substantial CO₂ emissions, with each trip generating an average of 5.44 tonnes per passenger. Pollution, Snow Melt, and Ecosystem Risks The…
A major international study shows that extreme heat strongly affects mood. Scientists analysed more than one billion social media posts worldwide. They observed that once temperatures passed 35°C, negative emotions increased sharply. The effect was greatest in low‑income countries, where sensitivity to climate stress was much higher. The research team, with MIT involvement, examined posts on X and Weibo. Each message was rated for positivity or negativity, then matched to daily weather data. Results revealed negativity rose 25% in poorer regions compared to 8% in richer ones. How Heat Shapes Behaviour For decades, studies have pointed to links between hot…
Asia leads the global surge in cryptocurrency adoption, while the United States has stepped up its role under Trump’s second term. Europe, however, focuses heavily on regulation, which many fear could limit innovation. Bitcoin’s journey from cents in 2009 to nearly $120,000 today shows how fast digital assets moved into mainstream finance. The MiCA directive, introduced by the EU, enforces strict separation of client holdings, compulsory audits, licensing costs, and transaction verification. Lawmakers argue these steps improve safety and build trust. Businesses warn high compliance demands burden smaller firms and risk slowing the industry’s momentum across the continent. Poland’s Overreach…
Duolingo faced criticism after a German exercise described J.K. Rowling as mean. The app removed the sentence and issued an apology. The prompt asked about Harry Potter books. The official answer attacked Rowling personally instead of offering a neutral response. Duolingo said it regretted the incident and stressed its goal is teaching language, not passing judgment on public figures. Rowling’s stance on trans rights continues to spark controversy worldwide, dividing fans, activists, and fellow writers. Daniel Radcliffe voiced disappointment in her comments while reaffirming his commitment to support LGBTQ equality. Reactions and Broader Literary Disputes Some users condemned the sentence…
