Pain during run breathing

Pain during a run that feels like a side stitch is often referred pain associated with the phrenic nerve and shallow or inefficient breathing—not necessarily a muscle cramp. Huberman recommends trying physiological sighs for relief. 1 2

• Physiological sigh: Take a deep inhale through your nose, a second brief inhale through your nose, then a long exhale. 3
• Repeat two or three times: You can do this while continuing to run; it may ease the discomfort by changing phrenic-nerve signaling. 4