Today I ran for the first time in over a year. And before that, I starting running briefly for the first time in two years. Believe it or not, I used to be a lot more consistent. I've always loved running, but around the time I quit the first time (almost four years ago to the day), I had started to develop some knee pain, which was attributed to some underlying hip/lower back muscle imbalances that I had developed from advancing my distance to aggressively. This was about two months prior to my first big race - a half marathon I had been training for all winter with some close friends. I was devastated when I was told to stop running, and had a hard time getting excited about other forms of aerobic activity, so eventually I just gave up on regular exercise altogether. Looking back, it's not a great excuse for stopping activity altogether, but in the context of my other life stressors and priorities, I allowed it to happen. Then about a year ago, a physiotherapist told m...