Weighted Down?

I ran again today and it was harder than yesterday. I carried one pound weights in my hands in an effort to prevent them from swelling from the heat. Perhaps it wasn't hot enough to bother my fingers, but I carried the weights anyway. I don't know if it was the weights or if I was tired, but running seemed more of an effort than yesterday. One thing for sure, it is much easier to run downhill (if it is a gradual grade) than uphill (even if it is a gradual grade). If I run in my neighborhood, it is one or the other. It was another lovely day, but tomorrow it is supposed to rain.