According to your description, the S-health program on Samsung S4 mobile phone is the built-in system software of the mobile phone, which does not support uninstallation and deletion. If you uninstall it by unofficial means, you can't download and install it yourself. Please contact Samsung Service Center and have an engineer repair the system.
Please visit the address of a specific service center:
. Samsung . com/support/service locations . ASP
Samsung knows to provide you with high-quality solutions and answer your questions attentively, hoping to get your satisfactory evaluation.