Andrew Huberman, Ph.D. on Instagram: "HOW TO REDUCE FEAR OF PUBLIC SPEAKING • - Fear and anxiety tend to increase when we stay stuck in our heads. I’ve discussed many times on the Huberman lab podcast the value of physiology based tools such as the physiological sigh (big deep inhale through the nose, followed by a brief second inhale to maximally inflate your lungs, and then a long all-the-way-to-lungs-empty exhale via the mouth). My lab published work on the value of physiological sighs for st