Joel Habener, Dan Drucker, Svetlana Mojsov and Jens Juul Holst

Newly powerful weight-loss drugs became the biggest story in health in the past year—and Dr. Jens Juul Holst, Dr. Joel Habener, Svetlana Mojsov, and Dr. Daniel Drucker played pivotal roles in making those medications possible. The scientists conducted the early work, beginning in the 1970s, on glucagon-like peptides, or GLPs, that first transformed the treatment … Read more

Melanie Ward

The U.K.-based nonprofit Medical Aid for Palestinians was founded 40 years ago to improve health care for all Palestinian people. So when war between Israel and Hamas broke out in the fall of 2023, CEO Melanie Ward knew her group would need to respond. “This is what the organization was built for,” she says. Ward … Read more

Ivan Cheung

In the pharmaceutical world, where ideas far outnumber marketable products, executives adhere to the motto of “fail often, and fail early,” with the understanding that to do so requires the discipline to know when to cut their losses and say no. But Ivan Cheung followed other advice as CEO of Eisai, Inc. “The opposite is … Read more

Stuart Orkin

Dr. Stuart Orkin didn’t set out to develop a historic treatment for sickle cell disease 45 years ago when he decided to study how blood cells formed. He became a researcher at Harvard Medical School just as scientists learned how to clone, or make copies of, genes. “Everybody was talking about how we could now … Read more

Ronnie Levin

In the next decade, the U.S. Environmental Protection Agency (EPA) aims to replace all the country’s lead pipes. Few did more to bring about the change than Ronnie Levin, who published a cost-benefit analysis in 2023 on cutting lead in drinking water, tallying the dollar costs of problems like impaired cognitive function and increased risk … Read more