The US government has released its new Dietary Guidelines for Americans for 2025-2030, bringing back a food pyramid and reversing the old logic. Instead of putting starchy foods at the base, the ...

Injectable weight loss drugs such as semaglutide and tirzepatide have attracted huge attention, but new real-world data suggest they deliver far less weight loss than surgery outside clinical trials.

Counties with a higher proportion of adults sleeping less than seven hours tended to have lower life expectancy, and the pattern held up year to year and in most states.