Juli Clover, writing for MacRumors, provides an excellent walk through the updated iOS 13 Health App. Lots of pics, easy to skim, worth your time.
No matter your iOS, be sure to check your profile. Get a sense of what’s available, verify that your profile data is correct and up-to-date, and take a minute to set up your Medical ID info.
Medical ID lets you specify health issues, blood type, organ donor signup, lots more.