Health, hunger, and hygine values not working as scriptable objects

So I created some player stats as scriptable objects and use On Enable to make them decrease with time
I created health hunger and hygine as 3 separate scriptbale objects in asset files
Then I created a UI script to have the values display in game mode,
I hook everything up in inspector -- BUT the values are not changing at all- they're always stuck at 100 (max value). What am I missing here?

 

OnEnable will generally be called once.

Do you intend to use Update()? That's usually how things are done over time.

Here is some timing diagram help:

https://docs.unity3d.com/Manual/ExecutionOrder.html