The relationship between healthy sleep patterns and the risk of scoliosis: a large prospective cohort study
Healthy sleep patterns may significantly reduce the risk of developing scoliosis in middle-aged and older adults, according to a large prospective study published in Frontiers in Neuroscience. Analyzing data from nearly 409,000 participants in the UK Biobank, researchers found that individuals who maintained the healthiest sleep habits had a 36 percent lower risk of incident scoliosis compared to those with the poorest sleep patterns.
What they found
The research team, led by Wanyue Li at Henan Provincial People’s Hospital in Zhengzhou, China, constructed a five-component healthy sleep score based on questionnaire responses at enrollment. The score rewarded one point each for five sleep behaviors: being a morning chronotype, sleeping seven to eight hours per night, reporting no insomnia symptoms, no self-reported snoring, and no excessive daytime sleepiness. Scores ranged from zero (least healthy) to five (most healthy).
Over a mean follow-up period of 15.82 years, 2,976 of the 408,870 participants (0.73 percent) developed scoliosis. The relationship between sleep health and scoliosis risk followed a clear dose-response pattern. Each one-point increase in the healthy sleep score was associated with a 10 percent reduction in risk (hazard ratio 0.90, 95 percent CI 0.87 to 0.93). Participants with the highest score of five had a hazard ratio of 0.64 (95 percent CI 0.52 to 0.80) compared to those with scores of zero or one, representing a 36 percent lower risk.
The protective association was independent of age, sex, body mass index, socioeconomic status, physical activity, smoking, alcohol intake, and other potential confounders.
An important interaction emerged with diabetes status. The protective effect of healthy sleep patterns persisted clearly among participants without diabetes but was statistically absent in those with diabetes (p for interaction less than 0.05). This finding suggests that metabolic health may modify how sleep influences spinal health, though the underlying mechanisms require further investigation.
Why it matters
Scoliosis is commonly thought of as a condition that emerges during childhood or adolescence. However, adult-onset scoliosis, particularly degenerative scoliosis, is a growing concern as populations age. Unlike adolescent idiopathic scoliosis, which has received extensive research attention, the risk factors for adult scoliosis remain poorly understood.
This study is among the first to provide large-scale prospective evidence linking sleep health to scoliosis risk in adults. The findings raise the possibility that poor sleep does more than leave people tired. Disrupted sleep is known to affect bone metabolism, inflammation, muscle recovery, and endocrine function, all of which could plausibly influence spinal structure and alignment over time. The dose-response gradient strengthens the case for a causal relationship, even though observational data cannot prove it directly.
The five sleep behaviors examined in this study are all modifiable. Unlike genetic predisposition or age, people can take steps to improve their sleep duration, manage insomnia, address snoring and sleep apnea, and regulate their circadian rhythms. This makes the findings actionable at both individual and public health levels.
Limitations
As an observational study, this research cannot establish causality. The UK Biobank cohort is also notably healthier and older on average (mean age 56.5 years at baseline) than the general population, which may limit generalizability. Sleep patterns were assessed only at baseline through self-report, meaning changes in sleep behavior over the 15-year follow-up were not captured. Residual confounding by unmeasured factors such as occupational physical demands or prior spinal injuries cannot be ruled out. Additionally, scoliosis diagnosis relied on linked hospital and death registry data, which may undercount milder cases that do not come to clinical attention.
Bottom line
Sleep health may be an underappreciated modifiable factor for maintaining spinal health into older age. While these findings do not prove that improving sleep prevents scoliosis, they add to a growing body of evidence linking sleep quality to musculoskeletal health. For clinicians, asking about sleep patterns may offer a low-cost, low-risk window into a patient’s skeletal health. For the rest of us, the message is straightforward: healthy sleep habits may protect more than just your brain and heart — they may also support your spine.
Source
Li W, Wang Y, Zhang J, et al. The relationship between healthy sleep patterns and the risk of scoliosis: a large prospective cohort study. Front Neurosci. 2026;20:1839503. DOI: 10.3389/fnins.2026.1839503. PMID: 42388672.