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The blog

Breath, explained.

The techniques one by one, what happens in the body, and how to make breathing a habit. Each article gives the protocol, the precautions and its sources.

Late-afternoon light on a wooden table, an iPhone showing the Arnasea app with its rose-mauve breathing glow on a clay-brown background, a dandelion seed head lying beside it.
Calm

The physiological sigh: the technique Stanford studied

Two inhales through the nose, one long exhale through the mouth. Your body does it on its own every five minutes. Done on purpose, it is the technique Stanford tested.

A bedroom in the evening, an iPhone on a walnut bedside table showing the Arnasea app with its amber breathing glow on an indigo background, a stack of seven pebbles beside it.
Fundamentals

Seven days of breathing: what actually changes

A week transforms no one. But it is not nothing either: here is what genuinely shifts in seven days, and what to expect later on.

Afternoon light on an oak table, an iPhone showing the Arnasea app with its coral breathing glow, a switched-off blood pressure monitor beside it.
Fundamentals

Why breathing calms the nervous system

You cannot slow your heart by thinking about it, or decide to digest faster. Breathing is the one exception, and that is exactly what makes it a tool.

Morning light on an oak table, an iPhone showing the Arnasea app with its green breathing glow, an open notebook beside it with three days ticked off, then empty boxes.
Fundamentals

Why you quit after three days

You started breathing exercises on a Monday, kept going until Wednesday, then nothing. It is not a willpower problem, and there is a mechanical reason behind it.

Afternoon light on an oak desk, an iPhone showing the Arnasea app with its green breathing orb, a leather watch set down beside it, off the wrist.
Fundamentals

How long should you breathe for?

Is one minute enough, or does it take twenty to count? The answer depends on what you are after, and it is shorter than most people assume.

Soft morning light on an oak table, an iPhone showing the Arnasea app with its green breathing orb, a steaming cup of herbal tea beside it.
Fundamentals

Nasal breathing: why the nose changes everything

Before picking a technique, there is a simpler question: where your breath goes in. The nose filters, warms, humidifies and slows the air - and it is the slowing that does most of the work.

Calm setting, the Arnasea app on Nadi Shodhana on an iPhone, a soft triangle with a breath bead, gentle daylight.
Balance

Nadi Shodhana: alternate-nostril breathing

Inhale through one nostril, exhale through the other, then switch. A centuries-old yogic technique, simple to practise, that calms and re-centres in minutes.

Bedroom at night, iPhone on a nightstand showing the Arnasea app in 4-7-8 mode, deep-blue blob, warm lamp.
Sleep

4-7-8 breathing: Dr. Weil’s method to fall asleep

Inhale 4 seconds, hold 7, exhale 8. Four cycles, and the nervous system shifts into sleep mode. The most effective technique against onset insomnia.

Focus ambiance, iPhone showing the Arnasea app in box breathing mode, blue-green square pattern, clean desk before action.
Focus

Box Breathing: the Navy SEAL technique for focus

Four equal beats, four seconds each. The technique used by special forces before action - and equally effective before a presentation.

Calm setting, iPhone showing the Arnasea app in cardiac coherence mode, soft green blob, late-afternoon light.
Calm

Cardiac coherence: 5 minutes to calm down

Six breaths per minute for five minutes. The simplest, most-studied, and probably most effective technique against everyday stress.

Inner-fire ambiance, iPhone showing the Arnasea app with the orange Tummo blob, on a warm background.
Advanced

Tummo: the inner-fire breath, explained

A thousand-year-old Tibetan technique now treated as a physiological tool. How it works, who it’s for, and how to begin safely.