Just wait until you get old. You, like many of us, may find the simple task of walking has become more difficult, even when you did not play football.
How old is that? I’ll be 68 in May LOL
No kidding. When my regular walking schedule is interrupted, if just for a day or two, I feel it the next day after a walk. I call it "needing 50 paces to become ambulatory." After that, I'm ok.
I'll be 62 in three months. I need to step it up, as I will celebrate my birthday with a 16 mile walk along my favorite trail (Campion Trail in Irving).