I started my jog at 5:41 AM this morning. The temperature was a reasonable 68° and the humidity was only 85%. Nevertheless, my heart rate seemed to be a lot higher than my pace would justify. So, I'm not quite sure what's going on. But, I did manage to squeak out 5.25 miles without stopping. For the last 3/4ths of a mile, my compression shorts were bonded around my thighs like goopy paper-mâché. I'll have to investigate this worsening cardio performance later ...
My heart rate has been like that too. I had to stop a few times the other day because my HR kept hitting 185 and I couldn't take it... So weird. I wonder what causes it.
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