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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 said: “Our team [...]

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 Neurology. This condition makes it harder for blood to flow, which can damage the brain over time, researchers said. It appears as [...]

Weight 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 [...]

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 [...]

Microplastics have been found throughout the human body -- including inside lungs, blood and brains -- and while it is not yet clear how harmful they are to our health, some researchers are sounding the alarm. These tiny pieces of plastic have been detected almost everywhere on Earth, from the deepest oceans to the highest mountains, as well as in the air, water, soil and food chain. Every day humans ingest, inhale or otherwise come in contact with microplastics, which are less than five [...]

THURSDAY, May 16, 2024 (HealthDay News) -- 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 [...]

TUESDAY, 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 [...]

Even mild cases of COVID-19 can affect the function and structure of the brain, early research suggests. Dr Clarissa Yasuda "Our results suggest a severe pattern of changes in how the brain communicates as well as its structure, mainly in people with anxiety and depression with long COVID syndrome, which affects so many people," study investigator Clarissa Yasuda, MD, PhD, from University of Campinas, São Paulo, Brazil, said in a news release. "The magnitude of [...]