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Heavy drinkers have a higher risk of brain lesions associated with dementia Eight or more drinks a week increase risk of brain lesions caused by thickened arteries Heavy drinking also was associated with more tau tangles, a hallmark of advanced Alzheimer’s disease THURSDAY, April 10, 2025 (HealthDay News) -- Heavy drinkers have an increased risk of developing brain lesions associated with memory and thinking problems, a new study says. Folks who imbibe eight or more alcoholic [...]

Key Takeaways The combination of chronic arthritic joint pain and depression could speed declines in cognition and memory in older people The brain might be overwhelmed by dealing with these two threats, researchers say The findings are a wake-up call to doctors to take both conditions more seriously in older patients THURSDAY, Nov. 21, 2024 (HealthDay News) -- Having achy, painful joints isn't just a physical woe: Coupled with depression, it could also degrade an older [...]

The world’s second-smallest vertebrate has been discovered - a tiny toad living in a Brazilian rainforest.   Researchers say the flea toad measures just 6.95 millimeters in length and can fit on the tip of a finger. The name of the new species, B. dacnis, pays tribute to Project Dacnis, a conservation, research and education NGO that maintains private areas of the Atlantic Rainforest, including the one where the animal was found, in Ubatuba, on the coast of São Paulo [...]

People with post-traumatic stress disorder (PTSD) face more than triple the odds of bruxism, otherwise known as teeth grinding, a new study finds. The small study of 76 Brazilian adults (38 diagnosed with PTSD and 38 without the condition) found much higher incidence of daytime teeth grinding. “Our study showed that PTSD can be manifested orally, in bruxism and a higher level of pain after a clinical dental examination. This requires joint action by psychiatrists, psychologists and [...]

In Brazil, where about 16 wild animals become roadkill every second, a computer scientist has come up with a futuristic solution to this everyday problem: using AI to alert drivers to their presence. Direct strikes on the vast South American country's extensive road network are the top threat to numerous species, forced to live in ever-closer proximity with humans. According to the Brazilian Center for Road Ecology (CBEE), some 475 million vertebrate animals die on the road every year [...]

Some plant species will be “winners” while others will be “losers” as global warming forces them to move uphill, suggests a new study. Researchers examined the current range of more than 7,000 plant species in Brazil's Cerrado savanna. They found that the fate of plant species will depend on where they live: lowland species can move uphill for cooler conditions, but mountain plants have nowhere to go. Dr. Mateus Silva, of the University of Exeter said: [...]

Teenagers glued to their screens for more than three hours a day suffer worse back pain, a new study has revealed. Girls suffer worse than boys, and back pain is also associated with physical inactivity and low academic achievement. The nearness of the screen to the eyes as well as sitting or lying on your stomach while viewing were also risk factors, along with the duration. The team at São Paulo Research Foundation (FAPESP) in Brazil analyzed data from more than 1,600 school [...]

People who are experiencing anxiety and depression months after a mild case of COVID-19 may have changes affecting the structure and function of their brains, Brazilian researchers report. “There is still much to learn about long COVID, which includes a wide range of health problems, including anxiety and depression, months after infection,” said Dr. Clarissa Yasuda of the University of Campinas in São Paulo. “Our findings are concerning, as even people with a [...]

WASHINGTON (AP) — Researchers report two newly discovered species of electric eels in South America, one of which can deliver a bigger jolt than any other known animal. The researchers collected 107 eels in four countries and found differences in their DNA, along with minor physical variations. One species had the ability to generate 860 volts of electricity, more than the 650 volts discharged by the only previously identified type of electric eel. While 250 species of fish in South [...]