For your training to be effective and progressive, you need to train hard enough and often enough. On the flip side, you should avoid training too much and make sure recover in between workouts to improve your performance and avoid injuries. Learning to monitor how recovered you feel is key, but if you’ve been overtraining for a while and fatigue has become the new normal for you, you may not notice the warning signals your body is sending you. That’s why it’s good to monitor your recovery and let your fitness data guide you towards better results, safely.