It said 60 to 100 so i would say 80
Of course they can
weather it is a body pain or soul pain
A NEGITIVE STRESS because when you get stressed out you cant sleep well and other things happen to so I hope this helps
I honestly feel everyone is different but me personally I deal with stress by breathing exercises. It feels good and it makes me get rid of my stress. I also take baths and do my breathing exercises in there as well.