Breathing Exercises for Stress and Anxiety

Breathing is the one part of the stress response you can consciously control — which makes it one of the most reliable tools for calming an activated nervous system. Here are four techniques with strong evidence behind them.

Why breathing works

Breathing is unique among bodily functions in being both automatic and consciously controllable. Slow, deliberate breathing — especially with a longer exhale than inhale — activates the vagus nerve and shifts the nervous system from a sympathetic (fight-or-flight) state toward a parasympathetic (rest-and-digest) one, measurably lowering heart rate and blood pressure within minutes.

4-7-8 breathing

Inhale quietly through your nose for 4 counts, hold for 7 counts, then exhale slowly through your mouth for 8 counts. The long hold and extended exhale make this one of the more potent techniques for quickly downshifting an anxious or stressed state — though the hold can feel uncomfortable at first, so starting with shorter counts and building up is fine.

Box breathing

Inhale for 4 counts, hold for 4, exhale for 4, hold for 4, then repeat. Used widely in high-stress professions for its simplicity and reliability, box breathing is easy to do discreetly almost anywhere — including mid-conversation or in a meeting.

Diaphragmatic (belly) breathing

Place one hand on your chest and one on your stomach. Breathe so that your stomach hand rises more than your chest hand — engaging the diaphragm rather than shallow chest breathing, which is associated with stress and anxiety. This is a good foundational technique to practice even outside of stressful moments, so it becomes automatic when you need it.

Extended-exhale breathing

The simplest version: just make your exhale longer than your inhale, in whatever counts feel natural (e.g., 4 in, 6–8 out). This alone, without needing to memorize a specific pattern, reliably nudges the nervous system toward calm.

Making it a regular practice

These techniques work best in the moment when they’re already familiar — practicing for a few minutes daily, even when you’re not stressed, builds the skill so it’s available reflexively when you need it. For persistent anxiety or chronic stress, breathing techniques are a genuinely useful tool but work best alongside, not instead of, addressing the underlying causes; see our Stress Management and Anxiety hubs for more.