About the breath.

hava's practice is adapted from dirga pranayama, the three-part breath. In Sanskrit, dirga means long or extended, and pranayama refers to the regulation of breath. It is a foundational practice in yoga, often taught first, because it teaches the body to use the full lungs rather than the shallow top of the chest.

In the traditional form, the inhale moves through three regions of the body in one continuous rise:

• Belly. The breath enters the low abdomen. The diaphragm drops. The belly rises softly, like a small balloon filling.
• Ribs. The breath continues upward. The side ribs widen. The back ribs press outward. This is intercostal breathing, engaging the muscles between the ribs.
• Chest. The breath finishes at the top. The upper chest and collarbones lift gently. Not shrugging, just a subtle rise as the very top of the lungs fills.

Then one long, slow exhale reverses the order: chest softens, ribs draw in, belly returns to the spine.

hava keeps the shape of the practice and lets the exhale carry the weight. On the home page the three beats are named soften, widen, release. Same body, plain language.

Slow breathing is one of the most studied nervous-system practices in the world. A published review defines slow breathing as any rate between four and ten breaths per minute, with the calming effects strongest around six breaths per minute. That rate has been shown to increase heart-rate variability, improve baroreflex sensitivity, and shift the autonomic nervous system toward parasympathetic activity, which is the branch that helps the body rest, digest, and recover (Russo, Santarelli, and O'Rourke, Breathe, 2017).

The exhale carries specific weight. In one controlled study, breathing with the exhale twice as long as the inhale acutely raised markers of vagal tone, and the effect held for four minutes after the practice ended (Bae et al., Psychophysiology, 2021). A separate randomized trial of ninety-nine adults practicing slow breathing over twelve weeks found that anxiety scores dropped meaningfully in both extended-exhale and equal-ratio groups, showing that slow, steady breathing itself is what settles the nervous system, with the exhale as a specific lever (Birdee et al., Complementary Therapies in Medicine, 2023).

A recent clinical review of pranayama in anxiety puts it plainly: slow rhythmic breathing, especially with a prolonged exhale, stimulates the vagus nerve, enhances vagal tone, lowers heart rate and blood pressure, and calms the emotional centers of the brain, including the amygdala, prefrontal cortex, and insula (Journal of Family Medicine and Primary Care, 2025).

None of this makes a breath practice a treatment. It makes the practice worth taking seriously as a way to arrive.