Can You Be Under Stress and Not Be Aware of It?

There's a lot of things that happen subconsciously, right? So can people be under stress and not know it? Yes. Our whole limbic system, which is the main system in the brain that is responsible for motivation and emotion, that was really our old brain. And there's... I don't want to get too far down an evolution hole. But there's a whole group of scientists that have just demonstrated that you can have these emotional responses but not be aware of it.