Gwennie, my wonderful old spaniel went out in the cool of the morning for our daily hike. She loved the cool weather and was bounding around and leaping over hedges like she did when she was a pup. If the cooler weather can do that for an old dog imagine how the people feel.
Get out and walk your dog folks. They and YOU will feel better.
And remember to take a couple of treats with you to practice recall along the way.
By the way, she was a tired pup after the hike and we all know a tired dog is a good dog.

Steve Haynes
Fidelio Dog Works
— Post From My iPhone. Dog training on the go.