All Sauce from Weekly Sauce:

If you are in your 90s, is hip replacement surgery too dangerous for you? That depends, new research shows: While elderly patients have more complications and higher death rates after such a procedure, the surgery can be “appropriately considered.” That’s because the risks for total hip replacement depend not just on patients’ age, but also…  read on >  read on >

While new research suggests cancer screenings are not extending lives for the most part, the study’s authors stressed that there are still good reasons why people should continue with screenings. Their review of clinical trials looked at six kinds of common cancer tests — mammography, colonoscopy, fecal occult blood testing (FOBT) or endoscopy, prostate-specific antigen…  read on >  read on >

If you need quick directions on performing cardiopulmonary resuscitation (CPR) in an emergency, don’t rely on Alexa, Siri or another voice assistant. A new study finds the directions provided by these AI (artificial intelligence) helpers are inconsistent and lack relevance. “Our findings suggest that bystanders should call emergency services rather than relying on a voice…  read on >  read on >

Starting Wed., Aug. 30, travelers to China will no longer need a negative COVID test to enter that country, officials announced Monday. China’s Foreign Ministry spokesperson Wang Wenbin announced the plan in a government news release, marking a big milestone in a country that has enforced strict lockdowns and “zero COVID” policies during the pandemic.…  read on >  read on >

Nineteen scientific studies have failed to answer a big question: Are cannabis-containing products safe or effective for kids with cancer? A new analysis of the studies found the evidence just isn’t there to determine dosing, safety and efficacy of medical marijuana or cannabis-containing products for managing symptoms experienced by these kids. “It was difficult to…  read on >  read on >