The pattern of your breathing affects the pattern of your performance. When you are under stress, deep breathing helps bring your mind and body back into the present.Over the years I have handed out thousands of little stickers to athletes that read ‘Breathe and Focus.’ A baseball player will place the bright orange circle on the shoulder of his uniform or underneath the bill of his cap, or on the barrel of his bat. A hockey player might affix it to his stick. Firefighters I have worked with place the stickers on their self-contained breathing apparatus. The stickers serve as a reminder. Whenever they feel themselves growing anxious, breathe in energy. Breathe out negativity. Breathe in relaxation. Breathe out stress.