All Sauce from Weekly Sauce:

Total knee replacement is a cost-effective treatment for extremely obese people with knee osteoarthritis, a new study claims. The painful condition affects more than 14 million U.S. adults, and total knee replacement is often recommended to treat advanced knee osteoarthritis. However, concerns about increased risks of poor wound healing, infection and implant failure make some…  read on >  read on >

The United States could save thousands of lives each year by addressing its lack of enough primary care doctors, a new study projects. There has been a shortfall of U.S. primary care doctors for a long time, with much of the problem concentrated in rural areas and poverty-stricken urban centers. And the future looks bleak:…  read on >  read on >

U.S. health officials called the results of AstraZeneca’s coronavirus vaccine trial into question early Tuesday, saying the company may have used outdated data that could have changed its conclusion about the efficacy of the vaccine. On Monday morning, AstraZeneca had announced that its vaccine was 79 percent effective in protecting against COVID-19 infection in the…  read on >  read on >

The smoke from forest fires is sending children to emergency rooms with respiratory problems at higher rates than ever before, a new study finds. “Kids are particularly vulnerable to pollution from wildfires, so they can have asthma exacerbation and other respiratory problems,” said senior researcher Tarik Benmarhnia, an associate professor of family medicine and public…  read on >  read on >

Those little blue pills were designed to help men experiencing impotence. But Viagra and drugs like it might also lower the risk of dying or experiencing a new heart attack in men with heart disease, according to new Swedish research. “Potency problems are common in older men and now our study also shows that PDE5…  read on >  read on >