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Float Therapy · Chronic Pain

Float Therapy for Chronic Pain

Fibromyalgia, arthritis, endometriosis, back pain, migraines — for people living with chronic pain, an hour without apparent gravity is unlike anything else. Here's what the research shows, what it doesn't, and what to expect.

December 13, 2025 11 min read By Gina Wertz, PharmD Lincoln, NE
Float therapy suite at Lost in Float Lincoln NE — gravity-free relief for chronic pain
Lost in Float — 8244 Northern Lights Dr, Lincoln NE · Private float suites · Open Tue–Sun 9am–9pm

Chronic pain doesn't take a day off. For people living with fibromyalgia, arthritis, persistent back pain, endometriosis, or migraines, most moments involve some degree of managing — compensating for discomfort, adjusting how you sit or move, rationing your energy around what hurts.

For many people living with chronic pain conditions, float therapy has become one of the most meaningful parts of their management routine. What makes it different: it removes the apparent gravitational load on your body almost completely. For an hour, your joints bear no weight, your muscles hold nothing, and many people find the constant pain signals that come from a body working against its own weight quiet down.

For many people with chronic pain, that hour is unlike anything else in their week.

Why Gravity-Free Relief Is Different

Most chronic pain has two components:

This second component involves a process called central sensitization — the nervous system becomes increasingly responsive to pain signals, amplifying them beyond what the original stimulus would warrant. This is particularly well-documented in fibromyalgia.

Research suggests float therapy may help with the nervous system component. By reducing sensory input to near-zero — no apparent gravity, no sound, no light, water at skin temperature — it may quiet the afferent signals that keep the sensitized nervous system on high alert. The brain, receiving very little to process, may ease off the amplification.

For more on what's happening neurologically — including the shift from beta to theta brain states that quiets the pain-amplifying nervous system — see Your Brain on Float Therapy.

Float tank room at Lost in Float Lincoln NE — private suite interior
Inside one of our private float suites · 1,300 lbs of Epsom salt · water heated to skin temperature
The magnesium connection

Float tanks at Lost in Float use approximately 1,300 pounds of magnesium sulfate (Epsom salt) per tank. Magnesium is involved in over 300 enzymatic processes in the body, including the regulation of nerve transmission and muscle contraction.

Two things to know about how magnesium works in a float tank:

  • Don't count on skin absorption. There isn't good evidence that meaningful magnesium crosses the skin into the bloodstream.
  • The soak itself is what people feel. Warm, dense, buoyant water lets muscles let go — which is part of why Epsom salt baths have been used for muscle soreness for generations.

During a float, your entire body is supported by water far denser than a typical bath. For many people with chronic pain, that muscle relaxation is one of the most immediate and noticeable parts of the session.

The mechanical side: spinal decompression

Beyond the nervous system effects, there's a straightforward mechanical dimension. When you're floating, the spine can lengthen naturally as gravitational compression is removed.

For people with back pain, herniated discs, or facet joint issues, many guests tell us this brings noticeable physical relief during and after the session — without requiring any technique or equipment, just buoyancy. How quickly and how much that translates to lasting change varies by person and the underlying cause of the pain.

What the Research Shows

The evidence base for float therapy and chronic pain has grown considerably over the last two decades, with the strongest body of research focused on fibromyalgia. Here's what the most rigorous studies have found:

Foundational Study — Pain Reduction
Kjellgren et al. (2001), Pain Research and Management

Studied float REST in chronic pain patients and found significant reductions in pain, anxiety, and depression — a pattern that makes sense given that all three are interconnected in fibromyalgia's presentation. Effects were not limited to the session itself; participants reported improvements that persisted between sessions and accumulated with regular practice. View on PubMed →

Modern Research Standard — LIBR
Feinstein et al. (2018), PLOS ONE

Out of the Laureate Institute for Brain Research in Tulsa, this paper documented significant short-term reductions in anxiety and improvements in mood after a single float session, with effects persisting days later. This work has set the modern research standard for what floating actually does to the nervous system. View on PubMed →

Most Comprehensive Review to Date
Loose et al. (2025), BMC Complementary Medicine and Therapies

Analyzed 63 studies covering 1,838 participants — the most comprehensive look at flotation research published. Strong evidence emerged across nine categories: pain, athletic performance, physiology (cortisol and blood pressure reduction), stress, anxiety, sleep, consciousness, psychology, and creativity. The pain literature alone now includes 10+ studies showing meaningful effects in chronic tension headaches, stress-induced muscle pain, and whiplash-associated disorders. View full text →

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Apparent weight on your joints during a float session. 1,300 lbs of Epsom salt makes the water dense enough that buoyancy offsets gravity completely — your body's apparent load drops to effectively zero.

For conditions like arthritis, the research is thinner but consistent with what would be predicted from the mechanism: removing joint loading may ease pain associated with that loading. The question isn't whether floating will feel good — it commonly does — but whether the benefit persists long enough to be worth incorporating regularly.

For many members who float for pain, the answer is yes — particularly when combined with red light therapy, which has emerging research on supporting the body's inflammation response at the cellular level.

A note on the state of the research

Early studies and consistent clinical experience are encouraging. The strongest benefits documented in the literature are in the short term and with regular use — longer-term data and larger randomized trials are still developing. The research community continues to build on this foundation, and the direction of findings so far has been encouraging across conditions and study designs.

Autoimmune & Inflammatory Conditions: An Honest Look

If you have lupus, rheumatoid arthritis, multiple sclerosis, Hashimoto's, Crohn's, ulcerative colitis, psoriasis, or any other autoimmune condition, you've likely seen wellness centers claim that floating "boosts immunity" or "reduces inflammation."

We're going to give you the honest picture instead. For autoimmune patients especially, vague claims aren't just unhelpful — they can be misleading in ways that affect medical decisions.

What the research actually shows

The 2025 BMC systematic review

The most comprehensive systematic review of flotation research to date — the 2025 BMC Complementary Medicine and Therapies review — analyzed 63 studies across 1,838 participants.

Strong evidence emerged in: pain, athletic performance, physiology (cortisol and blood pressure reduction), stress, anxiety, sleep, and consciousness.

Autoimmune disease was not a category — because there is not yet a meaningful body of peer-reviewed research on flotation REST for specific autoimmune conditions like lupus, MS, RA, or inflammatory bowel disease.

You may see other websites cite Ruzyla-Smith & Barabasz (1993) as evidence that floating "enhances T-cells, B-cells, and immune function." Worth knowing what that study actually is:

It does not show that floating treats, modifies, or improves autoimmune disease. Period.

What IS supported — the cortisol pathway

Here's what the research does support, and why floating may still be genuinely helpful for many people with autoimmune conditions, even without direct disease-specific studies:

That's a reasonable mechanism with indirect support — not direct evidence that floating treats autoimmune disease. It's why we list autoimmune conditions as something float therapy may support through stress reduction and nervous system regulation, rather than something it treats directly.

What members with autoimmune conditions tell us

Anecdotally, members with various autoimmune conditions have reported that regular floating helps them:

Some report fewer flares; some don't. We're not going to pretend these reports are research — they're observations from a self-selected population. They're meaningful, but they're not the same as a randomized controlled trial.

If you have an autoimmune condition
  • Floating is not a treatment for your condition. It's a stress and recovery tool that may complement your medical care. Continue all prescribed medications, treatments, and follow-ups with your specialist.
  • Skin involvement matters. Active psoriasis flares, eczema breaks, lupus rashes with broken skin, or any open lesions — the salt water will sting. Wait until skin is intact, or talk to us about whether to skip a session.
  • Immunosuppressive medications are common. While our tanks are sanitized between every session and the high salt content makes the water naturally hostile to most pathogens, ask your specialist about precautions specific to your medication regimen.
  • Tell your provider you're floating. Not because there's a known interaction, but because your specialist tracking flare patterns may want to know what's changing in your routine.
  • Don't change medications based on how you feel after a float. If floating helps and you feel meaningfully better, that's a conversation to have with your prescribing provider — not a reason to skip doses.

If you've been told by other wellness centers that floating will "fix your inflammation" or "balance your immune system" — be cautious. Those phrases sound good and don't mean much.

Research suggests flotation can be a useful tool for stress, pain, sleep, and nervous system regulation. For autoimmune disease specifically, that's where the case ends and the honesty begins.

Specific Conditions — What to Expect

💜
Fibromyalgia
The most studied chronic pain condition in float research. Research suggests central sensitization may respond to sensory reduction. Multiple peer-reviewed studies — including Kjellgren et al. and the LIBR work — document meaningful pain and anxiety reduction with regular sessions.
🦴
Rheumatoid & Psoriatic Arthritis
Zero joint loading may ease the mechanical component of arthritis pain. Members with inflammatory arthritis regularly describe floating as their best hour of the week. Always continue your prescribed care; floating is complementary, not a substitute.
🔩
Back Pain
One of the most common reasons people come to float — and often one of the most immediately felt. With gravity's load removed, the spine can lengthen and many people feel the pressure ease. For people with herniated discs, chronic muscle tension, or years of compression, many guests tell us the relief is significant. Many members describe lying flat without pain for the first time in years.
🌸
Endometriosis & Pelvic Pain
Endometriosis pain often involves both structural (lesion-related) and central sensitization components. Formal research on float therapy specifically for endometriosis is limited — but the combination of zero apparent gravity, deep muscle relaxation, and parasympathetic shift is something many endo sufferers describe as one of the few hours where the pain quiets meaningfully. Always coordinate with your gynecologist or endometriosis specialist.
🤰
Pregnancy
Float therapy is one of the few forms of genuine full-body relief available during pregnancy. As the belly grows, the spine, hips, and pelvis carry increasing load — and almost no position feels comfortable for long. In a float tank, that weight disappears entirely. Many pregnant members describe it as the only hour in their week where they feel completely comfortable in their body. Always check with your OB or midwife before floating during pregnancy.
🧠
Migraines & Tension Headaches
Floating removes nearly all sensory triggers — light, sound, physical tension. Many guests who get migraines tell us the dark, quiet environment feels soothing, and some report fewer headaches with regular use. Research on migraines specifically is still developing, so individual results vary.
⚡
Nerve Pain & Sciatica
For sciatica, floating may ease the muscle tension that often surrounds the irritated area. For some people this produces meaningful temporary relief; for others, the underlying structural cause requires a more targeted approach. Many people find some benefit, but expectations should be realistic — an hour of supine flotation isn't going to fix an active disc herniation.
🌿
Autoimmune & Inflammatory Conditions
No peer-reviewed studies on flotation for specific autoimmune diseases. What's documented: reliable cortisol reduction. What that may mean: since stress is a known flare trigger across autoimmune conditions, floating may indirectly support flare management — but it is not a treatment, and should always complement (not replace) your medical care. See the dedicated section above for the full honest picture.

"He hadn't been able to lie flat on his back in years. In the float tank, the weight just disappeared. He cried. That's what zero apparent gravity actually means for someone in pain."

What Members with Chronic Pain Tell Us

★★★★★

"I have psoriatic arthritis and the cold water immersion feels so great on my inflamed joints. The sauna is SO CLEAN and actually hot."

Mollie — Local Guide, 13 reviews · Uses both float and cold plunge for arthritis management
★★★★★

"Lost in Float has provided me a source of healing and regeneration beyond my expectations. I absolutely love to float. It's very clean, safe and inviting here."

Maya Chilese — 9 reviews
★★★★★

"For me, this place is a must and I love it — my old body looks forward to every visit and my ADHD mind craves the release."

Nancy Hinrichs — 7 reviews

The pattern we hear most from members managing chronic pain is consistency. One session often provides meaningful acute relief. A regular practice — two to four times per month — is where members start to describe it as genuinely changing how they manage their condition week to week.

What to Realistically Expect

Results vary — and it's worth being honest about that upfront. Two patterns are common:

Neither experience is wrong. Factors that influence your response include:

People whose pain has a strong central sensitization component — fibromyalgia, widespread tension, stress-driven pain — may respond particularly well. People whose pain is primarily structural may experience more relief in the tank than lasting change between sessions, though many tell us regular floating shifts their baseline over time.

Most people enjoy their first float. If yours feels less dramatic than you hoped, that's not a sign floating isn't for you — many people find each session goes even deeper than the last.

The Bigger Picture — Sleep, Mental Health, and the Pain Cycle

Chronic pain rarely exists in isolation. There's a self-reinforcing cycle most people in chronic pain know intimately:

The cycle also feeds anxiety and depression, which lower pain thresholds, which intensifies the pain experience. This is well-documented and genuinely hard to interrupt with any single intervention.

Float therapy addresses several points in that cycle simultaneously:

Who Shouldn't Float (Or Should Wait)

Float therapy is gentle and well tolerated by most people, including most people with chronic pain conditions. There are, however, a few situations where you should hold off or check with your provider first.

Wait or check with your provider
  • Recent surgery — particularly orthopedic surgery with hardware that hasn't fully integrated, or any procedure where your surgeon has restricted water immersion. Established post-surgical cases (months or years out) are generally fine.
  • Active skin infections, open wounds, or significant broken skin — the salt will sting badly and you risk introducing bacteria. Wait until skin is healed.
  • Recent ear surgery or active ear infection — water entering the ear canal could cause complications. We provide earplugs, but with active issues it's better to wait.
  • Uncontrolled epilepsy — many people with epilepsy float comfortably, but if seizures are not well-controlled, talk to your neurologist first.
  • High-risk pregnancy or pregnancy complications — many people with uncomplicated pregnancies float comfortably with their provider's OK, but always coordinate with your OB if there are complications.
  • Active psychiatric crisis — sensory deprivation can sometimes amplify acute states. If you're in crisis, this is not the right tool right now. Reach out to a crisis line or your provider.
  • Severe claustrophobia — most claustrophobia is manageable in our open float suites, but if it's severe and untreated, talk to us first so we can walk you through what to expect.

Practical Tips for First-Timers with Chronic Pain

A few things that make a meaningful difference if you're coming in with a pain condition:

Float tank water surface — Lost in Float Lincoln NE
The water is heated to skin temperature — the boundary between body and water disappears entirely

Pairing Float Therapy with Other Services and Medical Care

Float therapy works well as a standalone practice and even better as part of a broader approach to pain management. It's meant to complement medical care, not replace it.

Medical care pairings

Other Lost in Float services that pair well

Book your first float in Lincoln

Zero apparent gravity. 1,300 lbs of Epsom salt. Private suite, sanitized between every session. 60 minutes, $75. Family-owned since 2017.

Book now → See memberships

Frequently Asked Questions

QIs float therapy safe if I have fibromyalgia?
Float therapy is gentle, passive, and requires no physical effort. There are no positions to hold, no movements to perform, and no exertion involved. The Kjellgren et al. research and the more recent LIBR work both found floating well tolerated, with encouraging results for pain. Talk to your doctor if you have concerns, and mention your condition when you book and our staff can answer any specific questions.
QCan floating help my autoimmune disease?
Honest answer: there's no peer-reviewed research showing that floating treats or modifies any specific autoimmune disease. What research suggests is that floating may lower cortisol and stress, and that stress is a known flare trigger across most autoimmune conditions. Many of our members with autoimmune diagnoses find floating genuinely helpful as part of their broader stress and recovery routine — but it should always complement, not replace, the care from your specialist. See the "Autoimmune & Inflammatory Conditions" section above for the full picture.
QI'm claustrophobic — is floating possible?
Many people who consider themselves claustrophobic float comfortably. Our float suites are private rooms (not coffin-shaped pods), the lid stays open if you want, and you control the light inside the tank. Most claustrophobia in the float context is anticipatory — once people are inside, the spacious water and personal control over the environment usually settle it within a minute or two. If you're nervous, mention it when you arrive and our staff can help you ease in.
QWhen should I skip a float session?
Skip floating if you have active open wounds, broken skin from a flare (the salt will sting significantly), an active skin infection, a fever, or if you've just had a procedure or injection and your doctor has advised against immersion. See the "Who Shouldn't Float" section above for a complete list. For inflammatory flares where skin is intact, many members actually find floating most helpful precisely during flare periods — but listen to your body and err on the side of caution if you're unsure.
QWill the salt water sting if I have sensitive or broken skin?
We provide Vaseline for minor cuts or skin sensitivities before you enter the tank. If you have active open wounds or significant skin conditions, check with your doctor before floating. For psoriasis or eczema in remission, many people find the magnesium-rich water soothing rather than irritating — but listen to your body — you can always end your session early if you're unsure.
QWhat if I can't relax or feel anxious in the tank?
It happens for some people — especially those whose nervous system is already running hot from chronic pain. You can open the lid, turn on the light, or end the session at any point. Most people who feel uncomfortable early in a session find that it settles significantly within 15–20 minutes. Many people find each float goes even deeper than the last. Give it two or three sessions before drawing conclusions about whether floating works for you.
QCan I float if I have a fused spine or surgical hardware?
Many people with surgical hardware or fused spinal segments float comfortably and regularly. There are no contraindications from the float environment itself. We always recommend checking with your surgeon if you're in a recent post-operative period, but for established surgical cases, many people float comfortably.
QHow quickly will I notice pain relief from floating?
Many guests with chronic pain tell us they notice relief during their first session, though responses vary. The mechanical effect of buoyancy is immediate, but how much pain relief that translates to depends on the type and source of your pain. Effects typically last anywhere from several hours to a few days. With regular practice, many members report that their baseline pain level shifts over the course of several weeks. Individual results vary based on pain type, nervous system state, and consistency of practice.
QHow often should I float for chronic pain?
Many members find 2–4 floats per month is where cumulative benefit starts to feel consistent. A membership makes this frequency financially practical — and for members managing a chronic condition, the regular practice is usually what makes the difference.
QShould I tell my doctor I'm floating?
Yes — it's always worth mentioning to your care team so they have the full picture of what's helping. Many physicians and physical therapists are familiar with float therapy as a complementary approach. If you're making changes to your routine, your provider should know — and any medication questions belong with your prescriber.
References & Further Reading
  1. Kjellgren A, Sundequist U, Norlander T, Archer T. Effects of flotation-REST on muscle tension pain. Pain Research and Management. 2001;6(4):181-189. View on PubMed →
  2. van Dierendonck D, te Nijenhuis J. Flotation restricted environmental stimulation therapy (REST) as a stress-management tool: A meta-analysis. Psychology & Health. 2005;20(3):405-412.
  3. Bood SÅ, Sundequist U, Kjellgren A, Nordström G, Norlander T. Effects of flotation rest on stress related muscle pain: are 33 flotation sessions more effective than 12 sessions? Social Behavior and Personality. 2007;35(2):143-156.
  4. Jonsson K, Kjellgren A. Promising effects of treatment with flotation-REST as an intervention for generalized anxiety disorder. BMC Complementary and Alternative Medicine. 2016;16:108. View on PubMed →
  5. Feinstein JS, Khalsa SS, Yeh HW, Wohlrab C, Simmons WK, Stein MB, Paulus MP. Examining the short-term anxiolytic and antidepressant effect of Floatation-REST. PLOS ONE. 2018;13(2):e0190292. View on PubMed →
  6. Loose LF, Manuel J, Karst M, Schmidt LK, Beissner F. Flotation Restricted Environmental Stimulation Therapy for chronic pain: A randomized clinical trial. JAMA Network Open. 2021;4(5):e219627. View on PubMed →
  7. Loose LF, Manuel J, Karst M, Beissner F. A systematic review of flotation-restricted environmental stimulation therapy (REST). BMC Complementary Medicine and Therapies. 2025. View full text →

A note on medical care: Float therapy is a wellness practice grounded in published research. It is not a replacement for medical treatment, physical therapy, pain psychology, or prescribed medications — and it works best as part of a broader approach to managing chronic pain, not instead of one. If you are in an active pain crisis, contact your provider directly — float therapy is not appropriate as a substitute for emergency medical evaluation. If you are under the care of a provider for a pain or autoimmune condition, we encourage you to continue that care and bring floating into the conversation as a complement to what you're already doing.

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Lost in Float · Lincoln, NE · Since 2017

One hour without gravity.

For people living with chronic pain, that's not a small thing. Come experience what zero apparent gravity actually feels like — in a private suite, in Lincoln NE.

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