Does Hyper Mobility Increase Adrenaline Levels?

I just found out today that hyper mobility increases the level of adrenaline in your body. Some things I’m wondering if anyone else experiences is being able to handle stress well and having less pain when doing things that release adrenaline? I’ve always thought I was just weird and it was a trauma response but I don’t react to things (my grandpa had a heart attack, my brother broke his back, rock climbing incidents, car accidents) but I’m wondering if it’s just because my body is used to the constant “going, going, going” response. Also, when I worked at a them park and was riding coasters a lot of days, I had way less pain than on the days when I didn’t. Anyone else have similar experiences?