How to Explain running tracks to Your Mom

https://wiki-fusion.win/index.php?title=Running_tracks:_10_Things_I_Wish_I'd_Known_Earlier

Asphalt - Now you would believe that asphalt is just as bad as concrete, but it is not. It's actually about 8 times "softer". The real issue with running on asphalt roads is not the hardness, but the camber of