Why you’re breathing wrong – and how to fix it

Most adults breathe through their mouths dozens of times an hour without ever noticing, and a growing body of research says that habit alone could be quietly draining energy, wrecking sleep, and cranking up stress.

Quick Take

BBC Ideas released a video featuring author James Nestor explaining how most people breathe incorrectly and how to fix it.
Nestor pushes nasal breathing over mouth breathing as the simplest daily fix people can make.
Separate BBC Maestro videos back up the same nasal-breathing advice, with Nestor demonstrating specific counted-breath techniques.
Independent research reviews show real benefits for stress and anxiety, though scientists say results vary a lot by method and study quality.

What The BBC Video Actually Claims

BBC Ideas posted a video titled “Are you breathing wrong?” back in mid-2024. The description promises “simple tips to optimise how you breathe” straight from author James Nestor. A companion BBC piece, “The surprising benefits of breathing through your nose,” doubles down on the same message a year later, with Nestor again making his case for nasal breathing. Two BBC properties, one consistent claim.

Nestor’s core argument is blunt. Most people default to breathing through their mouths, especially during sleep or stress, and that habit skips the nose’s natural filtering and pressure-regulating job. His fix sounds almost too simple: breathe in and out through your nose as often as you can, make it a conscious habit, and let your body relearn its default setting.

The Nose Knows: Why This One Change Gets So Much Attention

In a BBC Maestro clip, Nestor walks through basic technique. He says the majority of your breaths, in and out, should pass through your nose rather than your mouth. He demonstrates a slow easy-in, easy-out rhythm, then adds a breath-hold on the exhale to show how the body responds when it’s given a moment to reset.

Other videos tied to this same wave of advice go further, teaching specific counted patterns. One BBC Maestro segment has Nestor walking through a four-count inhale, seven-count hold, and eight-count exhale, a rhythm borrowed from relaxation breathing traditions used to slow the nervous system down. Another video outside the BBC library recommends the same nose-first habit as “the beginning of breath training,” pairing it with reminders to breathe deeply and reset a shallow, tense breathing pattern.

What The Research Actually Shows

Breathing advice like this is not new, and scientists have spent years testing whether it holds up. A 2022 meta-analysis of controlled trials found real, measurable drops in self-reported stress among people who practiced structured breathing exercises, though the total study pool was modest at just 785 adults across twelve trials. That is a promising signal, not a guarantee.

A separate systematic review looked at 58 studies covering 72 different breathing interventions and found that 54 of them significantly reduced stress or anxiety in participants. That is a strong hit rate. But the same researchers cautioned that results depended heavily on which technique was used, how long people practiced, and whether someone actually taught them the method correctly.

Other reviews add useful nuance. One found that slow, nasal, diaphragmatic breathing improved markers tied to the body’s calming nervous system response, including heart rate variability, while also lowering stress hormones like cortisol. A Stanford-linked study comparing techniques found that a specific pattern called cyclic sighing, two inhales through the nose followed by a long mouth exhale, beat plain meditation at improving mood and slowing breathing rate. That study points to exhale-focused nose breathing as one of the more consistently effective options tested so far.

The Practical Takeaway For Everyday Readers

None of this requires special equipment or a gym membership. Nestor’s advice boils down to noticing your mouth-breathing habit and correcting it, especially during exercise, sleep, or stressful moments at a desk. Reviewers of the broader science agree slow, controlled nasal breathing carries measurable upside for stress, even if the size of that upside differs from study to study.

Common sense backs this one up. Nobody needs a peer-reviewed study to know that a tense jaw, hunched shoulders, and shallow gasping through the mouth feel worse than a slow, steady breath through the nose. The BBC’s advice lines up with decades of research on the body’s stress response, and it costs nothing to try tonight.