Improving your VO2 max can happen in just 6 to 10 weeks, especially if you’re starting from a lower fitness level or you’re inactive. Genetics, age, and current fitness levels play a crucial role in your improvement rate. You’ll need consistent training, combining both slow runs and high-intensity sessions, to make noticeable progress. Regardless of age, regular training boosts aerobic capacity and endurance. Stay committed, and you’ll discover additional insights and strategies along the way.