I've never been a fan of long distance running*, but it's about as evolutionary an activity as you can choose for exercise. It's interesting to think that a million years ago, some human was running across the steppe, endurance hunting an animal. I, on the other hand, spend my running days in a constant battle with myself. As soon as I start running hard, my inner voice starts asking me what the hell I'm doing. Why don't you just stop? It'll feel so much better. Are you a masochist? Maybe you're tired today. You can do it next time. Well, putting it off till next time is a cop-out, and running is actually a decent metric for aerobic improvement. So, after finishing my strength circuit today, I decided to run a time-trial mile on the treadmill (always at 1% incline, to best simulate running outside). I cut 45 seconds off my previous fastest mile, run last summer in a gym in Tokyo. I felt like I was going to die at the end. But I guess the training is starti...