Exercising on a treadmill
Hello everyone, I have been trying to increase my stamina by walking on a treadmill at the local gym, but I'm not sure of how much is too much, when to add more time/speed, or whatnot. To begin with I have an unfounded mistrust of my heart. I've had two stress tests (2012 and 2013) which were perfect. I've been sedentary…
