We are now in Covid limbo. Cases are down and still falling, yet scientists aren’t willing to declare the pandemic over — or, conversely, to predict when the next wave might come. But perhaps it’s a good thing that public health officials are displaying a little less confidence. Researchers don’t really know why pandemic waves rise or fall, so it ...

  Insulin has been making life better for people with diabetes since it first saved the life of a Canadian teenager in 1922. As the ensuing century passed, however, the drug also became a poster child for the dysfunctionality of America’s drug-pricing system. More than 10 million Americans rely on insulin to control their blood sugar, and the out-of-pocket cost ...

  Environmental, social and governance investors believe they can lower the risk of a portfolio and maybe even boost its return by investing in companies with robust ESG policies. The idea is that companies that take ESG seriously are better stewards of the environment, are less likely to be in the path of climate change, take better care of workers, ...