All Sauce from Weekly Sauce:

President Joe Biden marked the unthinkable milestone of half a million Americans lost to coronavirus with a somber, candlelit ceremony at the White House on Monday night. “The people we lost were extraordinary,” Biden said. “They span generations. Born in America, immigrated to America. But just like that, so many of them took their final…  read on >  read on >

Many older Americans lack knowledge about antibiotics, with some admitting to using leftover medication, a new survey reveals. More than 2,200 adults, aged 50 to 80, were questioned. Nine out of 10 said they’re cautious about using antibiotics, and nearly that number knew that overuse of the drugs can lead to them becoming ineffective, according…  read on >  read on >

A steady sleep routine may do more than keep you well-rested: New research suggests that the more swings in your slumber schedule, the worse your mood and depression symptoms are likely to be. Researchers from Michigan Medicine followed the sleep patterns of interns in their first year of residency after medical school. That irregular sleep…  read on >  read on >

Researchers have identified more than 140,000 viruses that live in the human gut, including half that were previously unknown. The number and variety of viruses found in more than 28,000 gut microbiome samples gathered from different parts of the world are surprisingly high, according to the study authors. The researchers added that their findings will…  read on >  read on >

The DNA ties that bind: Marriage satisfaction may lie in your genes, a new study suggests. Researchers from the University of Arkansas looked at 71 newly married couples, asking them to complete a survey three months after marriage and again every four months for four years. They also tested their DNA. Recent research indicates that…  read on >  read on >

The emergence of new SARS-CoV-2 variants could require a quick pivot on the part of pharmaceutical and medical device companies, to help stay one step ahead of COVID-19. The U.S. Food and Drug Administration issued guidelines Monday encouraging drug and test developers to pay attention to new coronavirus variants and be prepared to make that…  read on >  read on >