With soldiers it makes sense to use it explicitly to enforce the "fight" mode as needed. This can range from "occasionally in emergencies" to "all the time".

But militaries have famously not cared about the long term health and well being of their forces past their active use. So any consequence of "long term fight mode" past victory day are just the cost of doing business.

It's only constant if you constantly administer it

Sounds like a secondary concern to me /s