Qigong improved sleep, though placebo may share the credit

Poor sleep is one of the most common complaints in adult life, and interest in non-drug approaches keeps growing. Health qigong, a traditional practice combining slow movement, posture and breathing, is frequently promoted for sleep, but individual trials have been scattered across languages and populations. Whether the practice genuinely improves sleep quality, and by how much, needed a systematic look across the whole body of randomised evidence rather than reliance on any single study.

The reviewers searched ten databases for randomised controlled trials published in English or Chinese that tested health qigong against any type of control in adults aged 18 or over, with or without existing diseases. From an initial 730 articles, 13 trials involving 1,147 participants qualified. Study quality was assessed with the revised Cochrane risk-of-bias tool, and sleep quality effects were pooled using a random effects model, with formal tests for how much the trials disagreed with one another.

The headline pooled effect was large, at 0.955 in favour of qigong, and statistically significant. But the trials disagreed with each other severely, and a sensitivity analysis excluding one outlier study told a more sober story: the effect remained statistically significant but dropped to a small 0.423, with the disagreement between studies largely resolved. The authors also note that half the included trials used no active control, meaning participants knew they were doing something, which leaves room for nonspecific expectation effects to inflate the benefit.

This adds qigong to the list of mind-body practices with evidence of a modest sleep benefit, while illustrating a recurring problem in this literature: without active comparison groups, it is hard to separate the specific effects of a practice from the general benefit of doing something structured and calming. The honest reading is a small, real-looking improvement whose mechanism is uncertain. Better trials with active controls would settle how much is the qigong itself and how much is the ritual around it.

If you struggle with sleep and the idea of a slow, low-impact movement practice appeals, this is evidence that qigong is associated with modestly better sleep quality in adults both with and without health conditions. It is not evidence of a powerful or specific effect, and some of the benefit may simply be what happens when people commit to a regular calming routine. For a practice with little downside, a small probable benefit may still be worth having; just calibrate your expectations to small.