Every few years, I decide that I need to start running. Or better yet, since I don't run at all, learn how to. I've tried again and again and I just can't get into it. It's so hard. Eventually, I abandon it for something else, like yoga or step or spinning-- something with music or with a teacher.
Now I'm back to taking up running. I began a couple weeks ago and was able to run for three minute intervals (speed roughly 5.5 mph) without stopping. Hooray. Sometimes the back of my head would start to hurt. I don't know if that's normal.
How fast are beginners supposed to go? Should I aim for something a little faster than jogging? Should I focus on time instead of speed? I guess I should mention that the main objective is to improve my cardio, which has generally been poor. The next objective (not far behind cardio) is to tone up all the places that were more toned 5 years ago.