Breathing exercises for anxiety

Why breathing changes how you feel

Your breath is the fastest lever you have on your autonomic nervous system. Slow, extended exhales activate the vagus nerve and shift your body out of fight-or-flight into “rest and digest.” Stanford Medicine, Yale, and decades of research on the Buteyko method all point to the same conclusion: a few controlled breaths measurably lower heart rate, blood pressure, and stress hormones.

1. The physiological sigh

Popularized by Stanford neuroscientist Andrew Huberman, the physiological sigh is the fastest real-time way to lower stress.

1. Inhale deeply through your nose.
2. Take a second, shorter inhale on top of the first to fully inflate your lungs.
3. Exhale slowly through your mouth until your lungs are empty.

Repeat 1–3 times. Most people feel a noticeable drop in tension within 30 seconds.

2. The 4-7-8 method

Developed by Dr. Andrew Weil, 4-7-8 is best for winding down or falling asleep when anxiety is keeping you awake.

1. Inhale quietly through your nose for 4 seconds.
2. Hold your breath for 7 seconds.
3. Exhale fully through your mouth for 8 seconds.

Repeat for 4 cycles.

3. Box breathing

Used by US Navy SEALs and elite performers to stay composed under acute pressure. Great for panic, presentations, or a racing mind.

1. Inhale for 4 seconds.
2. Hold for 4 seconds.
3. Exhale for 4 seconds.
4. Hold for 4 seconds.

Repeat for 4–8 rounds.

4. Vagus nerve reset

Long, slow exhales stimulate the vagus nerve — the main brake on your stress response. Aim for an exhale roughly twice as long as your inhale (e.g. 4 in, 8 out) for 2 minutes.

5. Buteyko-style reduced breathing

Chronic anxiety often comes with chronic over-breathing. Gentle, nose-only, slightly reduced breathing restores healthy CO₂ tolerance and calms an over-alert nervous system over time. The Buteyko Masterclass inside nowa walks through this as a structured program.

Which one should you start with?

When anxiety spikes in the moment, start with the physiological sigh. For trouble sleeping, use 4-7-8. To build long-term resilience, add Buteyko-style practice a few minutes a day.