Improved security measures often restrict users' ability to modify their device, or even just use some of the applications. For example, simply unlocking the bootloader on your device blocks your ability to use Android Pay and most of the banking apps. All of this is for your own security, but some of these restrictions are getting pretty annoying. For example, tripping Knox prevents you from using the Samsung Health app, in order to keep your details private to you. The reasoning behind this is pretty obvious, but some users acknowledge the risk and are willing to take it.
If you're one of those users, I have good news for you. XDA Recognized Developer xpirt modified the application of Samsung Health, which runs on Knox-tripped Samsung Galaxy devices, whether it's rooted or not. If you want to use it, all you have to do is navigate to the thread linked below and download and install the APK file.