While taking a few deep breaths may be calming, to reap the benefits of breath related training for both brain and body requires training.
A critical way to foster this repetition is through gamification using the science of reinforcement learning.
In Zenytime games, you are more likely to win when you achieve 0.1 Hz patterns.
And by winning, you are more likely to achieve 0.1 Hz breathing patterns in the future, reinforcing vagal communication and its stress defeating physiological effects throughout the body and brain.
By gaming your breath, you can teach your heart and brain to have a healthy vagal vibe.