Playing the Didgeridoo to Stop Snoring: Science or Myth?

The 2006 Swiss RCT: What the Research Actually Found

In 2006, a team of Swiss researchers led by Milo Puhan published what remains the most cited study on didgeridoo playing and sleep-disordered breathing in the British Medical Journal (Puhan MA, Suarez A, Lo Cascio C, et al. “Didgeridoo playing as alternative treatment for obstructive sleep apnoea syndrome: randomised controlled trial.” BMJ 2006;332:1474). The randomised controlled trial assigned 25 patients with mild to moderate obstructive sleep apnea and daytime sleepiness to either four months of supervised didgeridoo lessons (minimum 20 minutes of practice per day, five days per week) or a waiting-list control group.

The results were striking for a non-device intervention. The didgeridoo group showed a mean reduction in Apnea-Hypopnea Index (AHI) of approximately 22% compared to controls. Daytime sleepiness, measured on the Epworth Sleepiness Scale, dropped by 3.0 points in the treatment group versus a 0.1 point change in controls — a clinically meaningful difference. Partners of participants also reported significantly less sleep disturbance. The authors concluded that regular didgeridoo playing was a promising treatment for snoring and mild OSA.

How Didgeridoo Practice Trains the Upper Airway

The mechanism behind these results is well understood. Playing the didgeridoo requires sustained activation of the upper airway dilator muscles — particularly the genioglossus (the primary tongue muscle), the soft palate elevators, and the pharyngeal constrictors. These are precisely the muscles that lose tone during sleep and allow the airway to collapse in snorers and OSA patients.

Circular breathing, the continuous breath technique required to sustain the didgeridoo’s drone, is particularly demanding for the pharyngeal musculature. It requires the player to simultaneously breathe in through the nose while pushing air out through the mouth using the cheeks and pharynx as a reservoir — a pattern that exercises the same muscle groups responsible for keeping the airway patent during sleep. Over months of practice, this conditioning appears to translate into measurably improved muscle tone and reduced collapsibility during sleep.

Who Benefits Most — and the Limitations

The Puhan trial recruited patients with mild to moderate OSA (AHI 5–30) and daytime sleepiness. The benefit appears most pronounced in this population. Patients with severe OSA (AHI above 30) were excluded from the study, and there is no evidence that didgeridoo practice alone is adequate management for severe disease, where CPAP remains the standard of care.

The practical limitations are significant. The study required a minimum commitment of 20 minutes per day, five days per week, for four months before meaningful effects emerged. Learning to produce a sustained tone — let alone circular breathing — requires instruction and consistent practice. The instrument itself ranges from $50 for a basic PVC training didgeridoo to several hundred dollars for a traditional eucalyptus instrument. For many people, the skill barrier and time commitment make this an impractical primary intervention.

Compared to other throat exercise approaches, didgeridoo practice has the strongest single RCT behind it, but myofunctional therapy programs (structured oropharyngeal exercises) have accumulated a broader evidence base across multiple studies, making them a more accessible alternative for most people.

Didgeridoo as One Tool in a Broader Strategy

The real value of the Puhan study is what it confirms about mechanism: the upper airway is trainable. Muscle tone in the pharynx, tongue, and soft palate is not fixed — it responds to conditioning. This insight underpins both throat exercise programs and, in a different way, mandibular advancement devices, which mechanically hold the jaw and tongue in a position that prevents collapse regardless of muscle tone. For people who want to pursue the exercise-based route, didgeridoo practice is a legitimate option. For those who want immediate results without a four-month training program, a device like the Snorple mouthpiece addresses the same underlying anatomy — airway collapse at the level of the tongue and jaw — from the first night of use. The two approaches are not mutually exclusive.