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113-million-year-old ant found in Brazil oldest ever discovered
Publicado em 24 de abril de 2025
A 113-million-year-old fossilized ant is the oldest ever discovered.
The “remarkably well-preserved" hell ant was found in limestone in Brazil.
Scientists say it is a member of Haidomyrmecinae - an extinct group that only lived during the Cretaceous period.
They had highly specialized, "scythe-like" jaws that they probably used to pin or impale prey, according to a study published in the journal Current Biology.
Study author Anderson Lepeco [...]
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Heavy Drinking Linked To Brain Damage, Increased Risk Of Dementia
Publicado em 10 abril 2025THURSDAY, 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 drinks a week have an increased risk of hyaline arteriolosclerosis, or a thickening and narrowing of the small arteries that feed the brain, researchers reported April 9 in the journal This condition makes it harder for blood to flow, which can damage the brain over [...]ver notícia -
This many drinks a week more than doubles risk of brain damage
Publicado em 10 abril 2025Drinking eight glasses of wine or pints of beer a week more than doubles the risk of brain damage compared to teetotallers, suggests new research. Boozers who down eight or more alcoholic drinks every week have an increased risk of brain lesions associated with memory and thinking problems, say scientists. They explained that the condition, caused hyaline arteriolosclerosis, causes the small blood vessels to narrow, becoming thick and stiff - making it harder for blood to flow, which can [...]ver notícia -
Study claims weight training can help reduce dementia risk
Publicado em 07 abril 2025Weight training helps protect older people from dementia, according to new research. Volunteers with mild cognitive impairment who practiced strength training showed improvements in memory and brain anatomy after six months, say scientists. Weight training has been previously shown to improve strength and muscle mass, reduce body fat, and contribute to well-being and mental health. Now, a new study conducted at the State University of Campinas (UNICAMP) in Brazil suggests it protects [...]ver notícia -
Scintists discover tiny toad that's world's second-smallest vertebrate
Publicado em 31 outubro 2024(Felipe Toledo via SWNS) By Talker By Dean Murray via SWNS 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 [...]ver notícia -
These are the climate change winners and losers
Publicado emSome 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: [...]ver notícia -
Teenage screen time linked to back pain and low achievement
Publicado em 25 abril 2023Teenagers 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 [...]ver notícia -
Too Many 'Bad' Carbs, Too Much Meat: Diet Choices Are Driving Rise in Type 2 Diabetes
Publicado em 18 abril 2023TUESDAY, April 18, 2023 (HealthDay News) -- Most cases of type 2 diabetes can be linked to making poor food choices, a new study finds. Researchers from Tufts University in Boston linked poor diet to 14 million cases of type 2 diabetes — about 70% of new diagnoses globally — in 2018. The biggest impact came from insufficient intake of whole grains, too much refined rice and wheat, and overconsumption of processed meat. “Our study suggests poor carbohydrate quality is [...]ver notícia -
Even Mild COVID Might Change Your Brain
Publicado em 21 fevereiro 2023TUESDAY, Feb. 21, 2023 (HealthDay News) -- 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 [...]ver notícia