I'm not fast. At my best, I could go an average of 5mph for about four miles. Now I only go for three, but I can regain that speed quickly by doing it at least once a week for a couple of weeks, even if I've been away from it for a few months. I think this is because I've been doing 4-6 mile hikes on one or two days of the weekend since fall, including with hills. Also, I swim in the summer, walk the dog year-round, and do other exercises that push me aerobically.
I prefer to run in the fall and spring, when the temperature is best, though I've also done it in winter and even early in the morning for part of the summer. My bicycling seasons are even shorter. I don't deal with extremes of temperature well.
I run for my mood and for other health benefits. Exercise - its planning and execution - has become an area of interest to me, so I also need it just to be satisfied. I have my rotating routines, and they help keep my head together. It takes most of my energy for the day, because I have fibromyalgia. But I need my exercise, so I push myself and then just deal with the consequences of the energy consumption. I take liquid B12 to make it possible. Before I had that, I was just sinking into increasing lethargy. I also strength train to displace fibromyalgia pain. It works reasonably decently - better than anything the doctor could prescribe. I can still get unpredictable pain flare-ups and bouts of debilitating fatigue, but at least I'm more with it in between, now that I get up and moving more often.
What I do may not seem like much to others who work out, but, to me, it's as though I've climbed a mountain. I began taking the B12 when I was 38, and, in spite of some setbacks along the way, I've refused to let go since!
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