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.

Food preservatives are everywhere in processed foods and drinks, so even a small risk shift matters at population level. A new French analysis using data from the NutriNet Santé cohort looked at ...