Do you know what you did the last time you worked out your [fill in body part]? If you are not keeping a journal, then measuring your results (and your progress) is a guessing game. To stay in this game over the long haul, tracking your stats will help. If you don’t, you may find yourself doing the same things over and over again. If you want to stay the same, keep doing the same things. If you want to progress and get into the best shape of your life, you need to up the intensity. Depending on your goals this may mean adding weights or repetitions, running an extra mile, or doing something new. Find a way to push yourself a little harder. Measure it, write it, and then compare it.