Written by Jessica Jackman Breathe in, breathe out.  Hopefully you just used your diaphragm to help you bring that oxygen into your lungs.  The diaphragm is the primary respiratory muscle located in the rib cage.  It attaches to your lower 6 ribs, sternum and upper lumbar spine.  It is shaped like two big domes underneath … Continue reading THE DIAPHRAGM, THE KEY TO HEALTHY BREATHING