Breathing exercises that are not just slow breathing

This is written to be used rather than admired. Each section below is a decision about breathing techniques, and each one has a default.

Paced breathing is the baseline

Slowing to around six breaths a minute with a longer exhale increases parasympathetic activity and lowers heart rate. This is the technique with the most support and the one worth learning first.

The ratio matters more than any particular count. Breathing low rather than high in the chest is the other half of it, and the simplest check is a hand on the stomach that should move before the one on the chest does.

The double inhale and long exhale

A pattern of two inhales followed by a long exhale — the physiological sigh — appears effective at reducing arousal quickly. It reinflates collapsed alveoli and offloads carbon dioxide efficiently, and it happens spontaneously during sobbing and sleep.

The useful part is this: it is useful precisely because it works in seconds rather than minutes. The evidence behind it is newer and thinner than for paced breathing, so it is best treated as a promising quick tool rather than as the better technique.

Panic and carbon dioxide

Many panic symptoms — tingling, dizziness, chest tightness — are produced by over-breathing and the resulting drop in carbon dioxide. Slowing the breath addresses the mechanism rather than distracting from the feeling. Understanding that the symptoms are being caused by the breathing, and are not dangerous, is itself part of the treatment.

The useful part is this: breathing into a paper bag is the folk remedy and is no longer recommended, because it is unsafe if the cause turns out to be something other than hyperventilation.

Box breathing and its uses

Equal-count inhale, hold, exhale, hold is widely taught and is useful for focus and for maintaining composure under load. The holds make it less suited to acute panic, where a longer exhale without holds is generally better. Matching technique to situation is the point rather than finding a single best one.

It also gives the count and the attention something fixed to hold, which is part of why it is taught in settings where people need to stay functional rather than become calm.

Where it can backfire

Attending closely to breathing increases anxiety in people who are hypervigilant about bodily sensations. For them, external-focus techniques work better, and this is a known response rather than doing it wrong.

On an ordinary week, anyone with a respiratory condition should check which techniques are appropriate for them. Intensive practices that deliberately over-breathe are a separate category altogether, with reports of fainting and worse, and they are not what any of this describes.

Some of this will suit you and some will not, and that is the point.

Practise it calm, and watch the overclaiming

A technique first attempted in the middle of panic rarely helps, because there is no established pattern to fall into and the attempt becomes one more thing that is not working. A minute a day while calm builds something retrievable under load, for the same reason drills are rehearsed rather than read about. Claims about nasal breathing have run well ahead of the evidence: the humidifying and filtering are real, and the broader assertions about performance and general health are not established.

Persistent breathlessness, or a habitual sense of never quite completing a breath, is a symptom to have assessed rather than a breathing habit to correct on your own.

The takeaway

Long exhale, no holds, for panic. Six a minute for everything else.

Pick the one that costs you least, and let the rest wait.