"Running! If there is any activity happier, more exhilarating, more nourishing to the imagination, I can't think what it could be." ~ Joyce Carol Oates
Unless you are a professional athlete or idly rich, odds are that the amount of time you can afford to devote to athletic training of any kind is limited. So where I just told you that you need to go long, you may well be thinking, "That's great. But I don't always have time."
What you need is a way to balance your training, both within the three disciplines of triathlon and with the rest of your life. Check out this article to learn just how to do that.