Weight lifting officials in the United States are hoping an unusual pre-Olympic camp in Hawaii, capped by last-minute trips to Japan, will pay off in medals.

The science behind the idea of restoring the intestinal microbiome to an ancestral state is shaky, skeptics say, and in some cases unethical.

Clinical trials show Wegovy triples the average weight loss seen with other drugs. Whether it will reach many patients largely depends on whether insurers decide to cover it.(Image credit: adamkaz/Getty Images)

In the U.S. South — home to nine of the nation's 12 heaviest states — obesity is playing a role not only in COVID-19 outcomes but in the calculus of the vaccination rollout.(Image credit: Rory Doyle/Bloomberg via Getty Images)