[philman_36]

Stress: Constant stress puts your health at risk
The long-term activation of the stress-response system — and the subsequent overexposure to cortisol and other stress hormones — can disrupt almost all your body's processes.

That's why you keep seeing the word "chronic" used in the studies!
The "chronic" doesn't react as they should because they've disrupted the way their body is supposed to work, even with their own cortisol production.

[philman_36]

So your 'fight or flight' mechanism is reduced when you're stressed out all of the time.

No wonder liberals want us all worried all of the time.
If we're "stressed out" all of the time we won't fight back as we naturally would.