By: Alena Wiese
Summary: A study published in August 2026 in the Journal of Pain Research found a genetic link suggesting that insomnia may raise the likelihood of sciatica. In a state where more than 1 in 5 residents is 65 or older and the average commute is 28 minutes, the finding adds sleep to the list of everyday factors worth discussing with a clinician.
It is 3 a.m. somewhere in West Orange County, and a person is awake again, shifting from one side to the other to ease a sharp pain that runs from the buttock down the back of the thigh. In a few hours comes the drive to work, then a day of sitting, then the drive home. By bedtime the leg aches, and sleep comes hard. Many people with sciatica know this loop well.
New research suggests the link may also run the other way, with poor sleep possibly coming first. The short answer to the headline question is: possibly. A genetic analysis found that people whose genes predispose them to insomnia appear to have higher odds of sciatica, though the study cannot show that poor sleep directly causes leg pain in any one person.
The paper, published Aug. 17, 2026, in the Journal of Pain Research by researchers at the Affiliated Hospital of Guangdong Medical University and Maoming People’s Hospital in China, reported that genetically predicted insomnia was associated with about 3.15 times the odds of sciatica. A second statistical method produced a similar result, an odds ratio of 3.899.
Can Insomnia Make Sciatica More Likely?
The study suggests it may. The researchers tested whether insomnia had a likely causal effect on six nerve pain conditions: diabetic nerve damage, drug-related nerve damage, unspecified neuralgia, trigeminal neuralgia, the nerve pain that can follow shingles, and sciatica. Of the six, only sciatica showed a stable link.
They also found a significant shared genetic background between insomnia and sciatica, with a genetic correlation of 0.395. The main estimate, an odds ratio of 3.15 with a 95% confidence interval of 2.20 to 4.51, held up across several sensitivity checks. The authors concluded that “the comorbidity of the two conditions may be regulated by genetic mechanisms associated with the central nervous system.”
To reach that finding without a sleep lab, the researchers used a method called Mendelian randomization, which treats inherited gene variants as a kind of natural experiment. Because genes are assigned at conception, before habits or injuries, comparing people with and without insomnia-linked variants can help separate a possible cause from coincidence.
The insomnia data came from UK Biobank, a research resource with genetic and health information on about 500,000 people. The sciatica data came from FinnGen, a large Finnish genetic study, in its twelfth data release. No new patients were examined, scanned, or treated.
Source: Insomnia Increases Susceptibility to Sciatica: Evidence from Mendelian Randomization and Integrative Genetic Analyses, Journal of Pain Research, August 2026.
What Does The Study Not Prove?
It does not prove that one bad night, or even months of poor sleep, will trigger sciatica. The analysis was entirely computational, and the authors note it included no clinical samples or laboratory experiments. It also cannot detect how genes and environment interact, which matters for things like desk work, driving, and body weight.
The authors call registry-based diagnosis a major limitation: sciatica cases were identified from administrative medical records, without MRI confirmation. The genetic data came mainly from people of European ancestry, which may limit how well the results apply to Florida’s diverse population. The study had too little statistical power to judge some of the other nerve pain conditions it tested.
In short, this is a signal worth following, not a finding that should change anyone’s care on its own.
Why Does This Matter In Florida?
It matters because Florida has a large population of older adults and a workforce that spends meaningful time seated behind the wheel. The U.S. Census Bureau estimates Florida had 23,462,518 residents as of July 1, 2025, and that 22.8% were 65 or older. Florida workers averaged a 28.0-minute trip to work in 2020 to 2024, time that for most people is spent seated in a car.
Sleep is a separate pressure point. The Centers for Disease Control and Prevention says adults need at least 7 hours a day, and it counts anyone reporting less as getting insufficient sleep. In 2022, the share of adults falling short ranged from 30% in Vermont to 46% in Hawaii. Adults 45 to 64 were among the groups with the highest rate, at 39%. Men also stood out, at 37%.
Cleveland Clinic lists prolonged sitting and low physical activity among sciatica risk factors. For a retiree who sits through long appointments or a commuter who drives the same corridor twice a day, sleep is now one more factor worth raising at a checkup.
Source: QuickFacts: Florida, U.S. Census Bureau, 2025.
Source: FastStats: Sleep in Adults, Centers for Disease Control and Prevention, May 2024.
When Does Sciatica Need Urgent Care Instead Of A Wait-And-See Plan?
Sciatica needs urgent care when it comes with signs that a nerve is under serious pressure or that something other than a pinched nerve is going on. Losing control of the bladder or bowels, numbness across the inner thighs or buttocks, and leg weakness that keeps getting worse call for an emergency visit. Pain that follows a car crash or a fall, or that comes with fever or a cancer history, belongs with a physician first. Without those signs, most sciatica is managed conservatively at the start.
Where Can Ocoee And West Orange County Residents Get Evaluated?
ReliefNow Laser Ocoee, at 288 Moore Rd in Ocoee, serves Ocoee, Winter Garden and Windermere and can be reached at 407-877-7117. Its chiropractors are Dr. Jeffrey N. Shebovsky, DC, and Dr. Kyle Learn. Services listed by the clinic include Class IV laser therapy, non-surgical spinal decompression, regenerative medicine, focused shockwave, chiropractic care, and customized rehabilitation.
Dr. Shebovsky founded Orange Wellness in 1994 and has more than 30 years of clinical experience. He earned a biology degree from the State University of New York at Albany and a Doctor of Chiropractic degree from New York Chiropractic College, and he served as team chiropractor for the Orlando Solar Bears from 2012 to 2018. In his practice, a sciatica visit starts with an evaluation: where the pain travels, what worsens it, a check of strength, reflexes, and sensation, and questions about daily habits such as time behind the wheel and, in light of research like this, sleep.
Conservative care may be appropriate when that exam shows an irritated nerve without red flags. When red flags appear, or when symptoms point toward a problem outside the spine, the next step is referral to a physician or emergency care. For patients who begin conservative care, progress is tracked with pain scores, function questionnaires, sitting and driving tolerance, and how far the pain reaches down the leg.
What Can A Person With Sciatica Do Tonight?
A practical starting point is to treat sleep as part of the conversation, not an afterthought. Keeping a simple log of hours slept, nighttime waking from pain, and daytime sitting time can give a clinician useful information at the first visit. The new study does not prove that better sleep will ease sciatica, and no one should expect it to. It does suggest that the tired, aching nights so many people describe may be more connected to their leg pain than they realized, and that is worth knowing.
About: Dr. Jeffrey N. Shebovsky, DC | ReliefNow® Laser Ocoee | 288 Moore Rd, Ocoee, FL 34761 | 407-877-7117
Disclaimer: This article is for informational and educational purposes only and is not intended to provide medical advice, diagnosis, or treatment. Consult a qualified healthcare provider before beginning any treatment program.
