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.

Instead of using psychological 'mind tricks' (a top-down approach), focus on physiological interventions first. By controlling your breathing and vocal mechanics from the 'bottom-up,' you regulate your nervous system directly, which in turn calms your mind.

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.

When you constantly self-monitor your thoughts while speaking, it results in clipped phrases and short breaths. To counter this, consciously elongate the vowels in your words. This 'chanting' or 'intoning' forces a smoother, more controlled breath and creates a more confident vocal delivery.

Speaking anxiety often stems from fearing future negative outcomes. To combat this, engage in activities that require immediate focus, such as saying tongue twisters. This not only forces you into the present moment but also serves as a practical vocal warm-up, a step many speakers neglect.

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.

Many vocal issues, like a tight or monotone voice, are symptoms of physical tension. Correcting posture—such as unlocking knees and aligning the pelvis—is the foundational step to enabling proper breathing, which in turn frees the voice. The body is the first link in the communication chain.

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.