Deep belly breathing helps move the body into the action of the parasympathetic nervous system (rest - and - relax response).
Not exact matches
Deep abdominal
breathing will involve your rib cage, lower back, and
belly and doing this with your eyes closed can
help relax yourself.
Slow,
deep breathing from the
belly helped me to calm down when I started stressing about losing touch with my old outdoorsy and adventurous self.