Whenever I am stressed,  shallow breathing  is the first sign that I am anxious,  and don’t feel safe.
A few consciously deep breaths bring me back to present moment… where if  I am in flow with life – everything passes…
Eckhart Tolle:
“If your mind carries a heavy burden of the past, you will experience more of the same.The past perpetuates itself through lack of prescence. The quality of your consciousness at this moment is what shapes the future.” The Power of Now: A Guide to Spiritual Enlightenment