oops
you can't see it in that picture but next to "health" there's actually a tiny town of midgets called "and human services" that was probably intentionally hidden by whoever made that graph
the 'health' part is a pretty big label for it but if you want to break it down, a fraction of it is medical insurance and a larger fraction is actually health, which includes things like funding into research projects, prescriptions, medication & health related things. stuff that would objectively kill lives if left defunded.