My wakeup HR was 49 and I had a nice one-hour run along the Parkway. I felt pretty good while I ran, but I was glad when I got back, because I was starting to get tired. The temperature was in the mid 80s, and it was a nice day for running.
In the past I've drunk liquids every mile because the running literature said to drink before one gets thirsty. However, the running literature now says to only drink liquid when one feels thirsty. During the past few weeks, I've been paying attention to when I get thirsty, and, for me, it is at the one-mile markers. So, what I've been doing is the thing I should be doing, only now I do it because I'm thirsty not because it is the proper thing to do. I sweat a lot and need more liquid than some runners would need. The color of my urine when I get back indicates that I'm getting about the right amount. This morning I took 12 oz of water and about 9 or 10 oz of Gatorade, and I had just a couple swallows of water left when I reached my car.