I used to be a physical guy when I was younger. I played tennis and soccer competitively throughout high school, and was an avid skier for about a decade. I used to rock climb, hike, camp out, and even went through a running phase for about a year where I ran between 10-20 miles 3-4 times a week. I also raced mountain bikes for a few years (until my bike was stolen around the age of 16). I even lifted weights for a bit (though you'd never know it by looking at me today). All of this came to an...