Question about the heartrate. No matter what I do, my heartrate goes up insanely high, even when I'm jogging at a slow pace. To keep it in that 65-85% of max HR, I'm doing at best a 12 minute mile over the course of 3 miles. What can I do to improve this? When I run that slow I don't feel any type of work out from it physically, but when I run at a 10 min mile pace my HR is at about 200 which I know isn't good. Any tips? Thanks abunch!