Health App (that came with iOS 8)

[DaytonAnnie]

I have a 5s and the Health App seems to be working just fine (even after updating to 8.1). My husband, on the other hand is having issues. He has a 5 and we don't think the Health App has ever worked (before/after upgrading to 8.1). There is no data and he works out 3 times a week at the gym. Any thoughts would be appreciated.