I got interested in Parkour and like to start to train for it. I used to do weight lifting and running short distances, but it's more than ten years now and I'm out of shape. So getting in shape again ...
I love having hardened calluses- except when they rip! A while back, I had a callus on each hand rip open whilst doing Parkour. I was told to "grind down" my calluses every once in a while. By this, I ...