Tracking physical activity levels is important as it provides insight into progress, helps set realistic goals, and boosts motivation. Using tools like fitness trackers or journals allows individuals to monitor their frequency, intensity, and duration of exercise. This information can reveal patterns, highlight areas for improvement, and keep one accountable. Additionally, tracking encourages consistency and can lead to behavioral changes that promote a healthier lifestyle. By recognizing achievements and milestones, individuals are more likely to remain engaged and committed to their fitness journey.