CHARLEY HORSE TAMED Even though a couple of days ago it was especially hot, I still wanted to go for a jog.  I cut my time short to 48 minutes, but nevertheless paid the price.  After I stopped, began to walk and finally took some water, I suddenly got a charley horse—a muscle cramp in my left calf.  After I drank a full bottle of water and got out of the heat, it went away. But now I wanted to learn more about charley horse and how to prevent it. I found a March 2021 online article from Harvard Medical...