Bicycling

     A couple of cautious trials have shown me that I can ride my bicycle without irritating my back.  Maybe I would irk it if I tackled much of a grade or tried to go really fast, but regular pedaling a modern safety bicycle (as opposed to an Ordinary) is fine.  It's no longer a might-as-well-be-fixed gear, though.  I used to leave it in 21st gear all the time; these days, I'm hunting up and down -- but that's an old lady with a bad back, in 85°F and above heat, so I'll take it.