I'm coming into this late (been without a computer for the past 30 days.
Lightning and electrical items, even those plugged into surge suppressors,
are not a good mix ) I have problems with a knee since it was torn up in an icy fall a couple of years ago. I refuse to give in to arthritis so Chloe (fur trainer) and I are out for walks at least twice a day (more/longer on weekends.) Depending on the humidity and pain, we do anywhere from 1.5 to 5 miles (with rest breaks tossed in).

"Hey - this walking thing is so BUMPY!"
This, made me laugh.