Don't say that around my prelate, I'm not having anyone mock him for it.

[She raises her eyebrows.]

In one, you're probably lightheaded and can feel your heart beating at least some of the time. It's harder to do things than if you were sitting around. The pain gets worse. Tunnel vision. Shortness of breath. Having to lock your knees now and then, or leaning on things to keep from collapsing. You may pass out. Any of that sound familiar?

In the other, none of that happens. You get a little strain going up inclines or after too long out and that's about it.