I have been wondering this for a while know, I am curious if anyone can tell me an answer.
I like doing sprinting as my conditioning, but I wonder if sprinting often might have a negative effect on the body. I mean, as I imagine it, if I sprint at 100%, doesnt the body think I am getting chased by something and produces stress hormones/adrenaline etc?
Or is this actually caused by seeing that one is being chased?
I see this in context to relaxation methods, where when you breath slowly etc. your heart beat goes down and all that stuff happens.
I am basically wondering if a similar effect exists if someone does all-out sprints.