Include the information that matters most to you in your fitness log. This may be how you felt before, during, or after exercising. And don't forget to record your blood sugar reading. As time goes on, compare your first entry with more recent entries. You may see a rise in your fitness level and a drop in your blood sugar. Write down what exercises you do. This is because aerobic, resistance, and other kinds of exercise can have different effects on your blood sugar. If you like technology, you can use apps that check and record fitness facts. This might include the number of minutes you exercised, your heart rate, hours of sleep, foods you ate before exercising, and distance covered. Many apps give daily, weekly, and monthly reports.