Health

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For decades, small grooves on ancient human teeth were thought to be evidence of deliberate tool use – people cleaning their teeth with sticks or fibres, or easing gum pain with makeshift “toothpicks”. Some researchers even called it the oldest human habit. But our new findings, published in the American Journal of Biological Anthropology, challenge this long-held idea about human …

When you’ve gone through poverty and homelessness, you know what it’s like to go to bed hungry. Wasting food or money probably isn’t your favorite pastime. And you’re careful about how you spend your pennies. A teen has told how she barely scrapes together $5 every week to be able to contribute to Sunday dinners with her friends. They take …

Maddamsetti, R. et al. Duplicated antibiotic resistance genes reveal ongoing selection and horizontal gene transfer in bacteria. Nat. Commun. 15, 1449 (2024). Article  PubMed  PubMed Central  CAS  Google Scholar  Liu, G. & Stokes, J. M. A brief guide to machine learning for antibiotic discovery. Curr. Opin. Microbiol. 69, 102190 (2022). Article  PubMed  CAS  Google Scholar  Naghavi, M. et al. Global …

Researchers converted a kidney with type-A blood to type-O.Credit: Sherry Yates Young/Science Photo Library Scientists have converted the blood type of a donor kidney and transplanted the organ into a person. The procedure — the first of its kind — could improve access to donor organs, specialists say, because the blood type of the donor would no longer matter. Currently, …

Starting the morning off with a simple 10-minute workout is a stellar way to promote healthy habits throughout the rest of the day. Better yet—you can fast-track total-body strength gains by performing standing exercises alone. We spoke with Karen Ann Canham, CEO and founder of Karen Ann Wellness, who breaks down a speedy morning standing routine that builds strength after …

Credit: ZME Science/Midjourney. This illustration is AI-generated. An unexpected idea is emerging in medicine: vaccines may protect not only against infections, but also against dementia. The evidence is strongest for the shingles vaccine. Originally designed to prevent a painful blistering rash caused by shingles (herpes zoster), it may also lower the risk of dementia by as much as 20%. “They’ll …

A patient in an iron lung being checked by a nurse in 1938. (Photo by Keystone/Getty Images) IN THE SPRING OF 1954, hundreds of thousands of American schoolchildren lined up to receive the Salk vaccine. I was in the fifth grade, feeling oddly sad. I fully appreciated the profound good news that a cure had been found for polio, a …

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Is dark chocolate actually healthy?  The Economist Is dark chocolate a healthy alternative for diabetics?  The Indian Express A piece of dark chocolate a day? Studies reveal effects on blood pressure  Telegrafi Dark chocolate helps control blood sugar; the perfect dessert swap  Times of India Source link