Answer this question to the best of your ability:
Can you elaborate on how mindfulness of breathing helps in improving concentration levels?
Mindfulness of breathing is a practice that involves focusing your attention on your breath as it moves in and out of your body. This practice can greatly enhance your concentration levels by training your mind to stay present in the moment, rather than drifting off into thoughts about past or future events. Here's how it works:

1. Sit in a comfortable position with your back straight and close your eyes.
2. Bring your attention to your natural breath as it flows in and out of your body. Notice the sensation of air entering and leaving through your nostrils, the rise and fall of your chest and abdomen.
3. When you notice your mind has wandered off into a thought or planning future events, gently redirect your focus back to your breath. Do not judge yourself for getting distracted; simply acknowledge the distraction and return to the present moment.
4. As you continue this practice over time, you'll find that your concentration improves as your mind becomes more skilled at staying focused on the present moment. This increased concentration can then be applied to other areas of life, such as work or study.
5. Additionally, regular practice of mindfulness of breathing has been shown to decrease rumination—or repetitive thoughts about past events or future worries—which can further improve concentration levels and overall mental well-being.