Back to the future

Why can't I remember things that seemed to work for me. In my youth I would work till 7pm and go run after that for my second run of the day. What got me thru that late night run?
COFFEE
Now last week I started to have a small cup before my afternoon jogs. It works. Why couldn't I remember. Coffee is better than a nap and takes less time. A nap then coffee would be ideal but..
Training or jogging has been going which is good. Ran 50 minutes tonight was a struggle but made it. Thanks Gordo and Rich.