We are having schizophrenic weather. Last week I sat on the porch in the afternoon and read a book. Today, I stuck my toe out the front door and nearly got frostbite. I thought I would go for a walk yesterday afternoon and the wind was so strong, I just walked around the block and called it quits. I used to not be such an exercise buff, but since I had a health scare a couple of years back, I have been faithful to my regime. I have a particular route that I follow because it involves several up and...

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