ONE PEPTIDE has recently transformed medicine. Drugs based on glucagon-like peptide-1 (GLP-1), a hormone released by the gut after a meal, began as treatments for diabetes before proving remarkably good at helping people shed weight. They have since shown benefits in the fields of heart disease, kidney disease, sleep apnoea and other ailments. Drugmakers are now betting that others, the orexins, could follow a similar path. Already have an account?Log in Continue with a free trial Get full ...