This weekend Meg and I helped one of our sons move his family into a new apartment near the high school.  We carried stuff up the stairs, down the stairs, up again, down again.  Repeat a couple of hundred times.  And that was just at the old apartment.  Similar actions also happened at the new place.
I learned a couple of things:

First:  While my brain tells me that I am in my early twenties, the rest of me tells me otherwise.  No matter which way I move today, some muscle or another is tweaked into the it's attention mode.  Attention comes in two ways: soreness or pain.  Sometimes both.

Second:  Aspirin, Aleve, and similar medications are not as effective for me as they used to be. 

Those who know me know that I'm kinda out of shape.  I haven't been to any gym for a year or two now. Had I paid more attention to my muscles and aerobic capacity the toll surely would have been less.

So, I'm turning over a new leaf  There's a lesson to be learned here. I've got to get into shape pronto.

In a week or two I'm going to sign up with a fitness center.