To manage anxiety while speaking, adopt the 'One Idea, One Breath' model. The key is to make your out-breath significantly longer than your in-breath while delivering a single idea. This extended exhalation activates your parasympathetic nervous system, lowering your heart rate.

Positive reframing and logic fail when your body is in a state of fight-or-flight. You cannot access a more powerful story when you're physiologically overwhelmed. The first step must be a physical practice—like breathing, meditation, or exercise—to calm the body before attempting to change the mind.

Attempting to control anxious thoughts with more thoughts ("top-down") is often ineffective. A more efficient strategy is to first regulate your body's physiology through techniques like controlled breathing ("bottom-up"), which then sends safety signals to the brain, making cognitive shifts easier.

Using a straw to hum or make sound (straw phonation) is a powerful exercise. It creates back pressure, forcing a controlled and elongated exhale. This semi-occluded vocal tract exercise is highly effective at activating the parasympathetic nervous system to induce calm.

Deep belly breathing, with a focus on a long exhalation, slows the autonomic nervous system and calms physical symptoms of anxiety like a shaky voice. It's a physiological hack to manage the fight-or-flight response.

To manage public speaking anxiety, communication expert Matt Abrahams advises focusing on deep belly breathing where your exhale is twice as long as your inhale. Just two or three of these breaths can slow your nervous system, lower your heart rate, and normalize your voice, providing an immediate calming effect.

The parasympathetic nervous system (the "parachute" or calming response) activates faster than the sympathetic (fight-or-flight) system. You can begin to trigger this calming, vagal nerve response almost instantaneously, within a single controlled breath.

To shift from anxiety to a peak performance state, use physical mechanisms. A specific technique involves scaled, intense breathing to oxygenate the brain and lower cortisol, followed by Qigong "cupping" to open the body's meridians. This provides a physiological lever for emotional regulation.

Shallow chest breathing during stressful situations creates a vicious cycle of anxiety. In contrast, deep belly (diaphragmatic) breathing is a direct physiological intervention that lowers your heart rate and calms your nervous system, giving you more control and presence.