Post History
It is understandable why it is tiring to walk faster than one's normal pace in order to keep up with someone younger and/or fitter than oneself. Simple physics: one is exerting more energy per uni...
It is understandable why it is tiring to walk faster than one's normal pace in order to keep up with someone younger and/or fitter than oneself. Simple physics: one is exerting more energy per uni...