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Climate change has already become deadly enough to cause 5 million extra deaths worldwide each year, researchers report. “This is the first study to get a global overview of mortality due to non-optimal temperature conditions between 2000 and 2019, the hottest period since the pre-industrial era,” said study co-leader Yuming Guo, a professor at Monash…  read on >  read on >

Brushing and flossing is good not only for your teeth: It might also benefit your brain, a new study suggests. The findings showed that tooth loss is tied to an increased risk of dementia, though getting dentures may help reduce that risk. For the study, New York University researchers analyzed 14 studies that included more…  read on >  read on >

The highly contagious Delta variant now accounts for more than half of all new coronavirus infections in the United States, new government data shows. The dangerous variant that crippled India recently currently makes up 51.7% of new infections in this country, according to the U.S. Centers for Disease Control and Prevention. At the same time,…  read on >  read on >

Lotteries that pay cash and prizes to Americans who get vaccinated sound like a sure-fire recipe for success, but a new study finds they don’t actually boost vaccination rates. After media reports suggested that Ohio’s “Vax-a-Million” lottery increased vaccination rates, other states decided to use lotteries to reinvigorate slowing vaccination rates. “However, prior evaluations of…  read on >  read on >