Okay.... I'm a relatively fit girl, age 19, 5' 7", 135 lbs. However, I barely have to work to get my heartrate up. I will be barely jogging, not getting tired, and my HR is at 180. I definitely feel as though I could push myself harder because jogging at this level is not difficult. However, I know that a HR much higher than 180 can be dangerous. I find myself wanting to push myself further when working out but can still only manage a very slow jog to keep my HR down. Would working out harder be really dangerous even if I feel I can definitely do it? How do I change my body so that I can actually work out without my HR going through the roof? Anything you can tell me will be helpful. Thanks!!!!
