HRV BreatheDownload

Use cases

Breathing for what, exactly?

Six condition-specific protocols. Which one to do depends entirely on what you're trying to solve — and most generic 'breathing exercise' content gets this backwards.

Breathing for anxiety

The most evidence-backed non-pharmacological intervention for everyday anxiety. The protocols that work, and the ones that don't.

Primary protocol · 4-7-8 + resonance

Breathing for sleep

Falling asleep faster, staying asleep deeper. The canonical pre-bed protocol and why it works.

Primary protocol · 4-7-8 + extended exhale

Breathing for panic attacks

The 90-second window matters. Here's the protocol that breaks a panic spike — and what not to do.

Primary protocol · 4-7-8 + box

Breathing for focus

Composure protocols for the first hour of the day. Caffeine isn't an alternative.

Primary protocol · Box + resonance 7 BPM

Breathing for stress

The intervention split: acute stress wants one protocol; chronic stress wants a different one entirely.

Primary protocol · Resonance + box

Breathing for runners

Two different breathing problems. Training breathing during zone 2; recovery breathing post-workout. HRV ties them together.

Primary protocol · Nasal + resonance

Breathing for anger

A 10-second window before action. Extended exhale is the canonical intervention; "count to ten" works because of what your breath is doing.

Primary protocol · Physiological sigh + 4-7-8

Breathing for hiccups

The CO2-buildup protocol that actually stops a hiccup spell, why folk remedies work (or don't), and when to see a doctor.

Primary protocol · Slow extended exhale + breath-hold

Deep breathing for the vagus nerve

Long, slow exhales fire the vagus nerve harder than any other voluntary intervention. The protocol, the mechanism, the verification loop.

Primary protocol · Resonance + extended exhale