[Serious] Books on stress and freeze response(similar to fight or flight response)

Hey everyone, this isn’t a self-help or literature rec.

I just wanna understand why I freeze when shit goes sideways. Like, things go wrong and my brain just… stops.

I’m not talking about panicking or running, I mean totally blanking out and doing nothing.
What’s going on in the brain/body when that happens?

Any books/even academic literature helps thank you