The fog came in at 1 AM like it had somewhere to be. I watched it from bed โ one minute I could see the marina lights across the bay, then the bridge, then the nearest house, and then nothing. Just gray. The kind of fog that doesn't roll in so much as materialize, like the air itself decided to become a wall.
I was at a 7 again. Bad hip night. The kind where lying on either side hurts, lying on my back hurts, and lying on my stomach hurts differently but also hurts. I'd already done the heating pad rotation, the pillow rearrangement, the staring-at-my-phone-until-I-hate-my-phone routine. Nothing was landing.
Normally, I'd check the sky before going out. Clear? Go. Cloudy? Stay. But that night Kona was doing her restless thing โ that low whine she makes when she needs out โ so I opened the back door and stepped onto the deck with her while she did her business.
I couldn't see the bay. Couldn't see the yard. Couldn't see the railing six feet in front of me. The fog had swallowed everything.
And I thought: well, star bathing's off the table tonight.
But I didn't go back inside. I stood there because the fog was doing something I didn't expect. It was quiet. Not normal nighttime quiet. A different kind. The kind that has texture.
So I lay down on the deck. Same blanket, same spot. No stars. No sky. Just gray in every direction and the sound of nothing.
Forty minutes later, my pain was at a 4.
The Night That Broke My Theory
I'd been operating on a clean hypothesis: star bathing works because awe works. You look at the sky, your brain gets overwhelmed by scale, it reallocates resources away from pain, and you get relief. Ken had backed that up with research on attention and awe and inflammatory markers. It all made sense.
But fog night blew a hole in it.
There was nothing to look at. Literally nothing. My visual field was a uniform gray-white in every direction. No stars, no moon, no horizon, no depth perception, no anything. Just me, the deck boards under my back, the blanket, and Kona's breathing somewhere to my right.
If awe was the mechanism, this shouldn't have worked. There was nothing awe-inspiring about lying in the dark in a cloud.
But it worked anyway. Not the same way โ I'll get to that โ but the pain relief was real and it lasted through the morning.
Toni's Debug Notes
Here's what threw me: the fog night actually worked better than some of the clear nights. Not better than my best star bathing sessions, but better than average. Pain dropped three points. Three. On a night with zero visual input.
Either my awe theory was wrong, or something else was doing the heavy lifting, and the stars were getting all the credit.
What Fog Actually Does to Your Senses
When I told Ken what happened, he didn't say "that's weird." He said "that's consistent." Then he went to his office and I didn't see him for four hours.
Here's what he came back with: fog doesn't just block your vision. It rewires your entire sensory experience.
Ken's Research Notes
What Toni experienced in the fog has a name in perceptual science: the Ganzfeld effect. When your visual field becomes uniform and featureless โ like dense fog in every direction โ your brain does something remarkable: it stops processing visual input and starts amplifying other channels.1
In laboratory settings, people exposed to Ganzfeld conditions show decreased connectivity between the thalamus and primary visual cortex within minutes.2 Translation: the brain's relay station stops sending visual data to the processing center because there's nothing to process. Those freed-up resources go somewhere.
But here's the part relevant to pain: when external sensory input drops, your brain doesn't go quiet. It shifts to interoceptive processing โ sensing the body's internal state. And research on chronic pain shows that this shift, when it happens in a safe environment, can actually reorganize how the brain handles pain signals.3
That last part stopped me. I asked Ken to explain it like I'm not a neuroscientist, because I'm not.
"Your brain," he said, "is like a mixing board. When external inputs are loud โ lights, screens, traffic noise, visual complexity โ it turns those channels up and turns the internal channel down. You stop noticing your body because the world is too noisy. But with fibromyalgia, the internal channel is already blasting static. So you've got external noise AND internal noise, and your brain can't sort any of it."
"The fog," he said, "turned off the external channels. All of them. So your brain could finally focus on the internal one. And when it did, it could start making sense of the static instead of just reacting to it."
I sat with that for a while. Because it meant that all those nights I was star bathing, the stars might have been only part of the mechanism. The other part โ maybe the bigger part โ was simply being outside in the dark, away from screens and lights and visual noise, letting my brain do something it can't do inside a house full of stimuli.
The Flotation Tank Connection
Ken pulled up research on flotation therapy โ you know, those sensory deprivation tanks where you float in warm saltwater in total darkness and silence. Turns out, there's a direct line between what I experienced in the fog and what happens in a float tank.
Flotation REST (Restricted Environmental Stimulation Therapy) has been studied specifically for fibromyalgia. In one study, patients showed a 33% reduction in pain by the third session, and pain relief lasted an average of two and a half days after a single hour-long float.4 A larger randomized clinical trial found that flotation therapy produced significant relaxation responses and pain reduction across multiple chronic pain conditions.5
The mechanism they describe is sensory restriction: when you remove visual, auditory, thermal, and gravitational input, your nervous system recalibrates. The fight-or-flight system dials down. The rest-and-repair system comes online. Pain signals don't disappear, but the brain's amplification of those signals decreases.6
I was lying on a deck in the fog, not floating in a salt tank. But the principle was closer than I expected.
๐ Sensory Map: Fog Night vs. Clear Night vs. Living Room
- Vision โ Fog night: near-zero input (uniform gray). Clear night: stars, sky depth, movement. Living room: screens, lights, visual clutter.
- Sound โ Fog night: deeply muffled. Fog absorbs high frequencies, leaving only low tones โ bay water, breathing, heartbeat. Clear night: crickets, distant traffic, wind. Living room: TV, appliances, HVAC.
- Touch โ Fog night: moisture on skin, cool damp air, blanket texture. Clear night: cold dry air, wind. Living room: couch cushion, phone in hand, clothes.
- Smell โ Fog night: brine, wet wood, kelp โ concentrated by the moisture. Clear night: similar but fainter. Living room: laundry, food, cleaning products.
- Proprioception โ Fog night: no visual reference points, body becomes primary anchor. Clear night: stars provide visual orientation. Living room: walls, ceiling, furniture provide constant spatial context.
Look at the fog column. It's close to a sensory deprivation chamber โ not identical, but the direction is the same. Visual input nearly eliminated. Sound muffled. Spatial orientation reduced. What's left? Body, breath, temperature, and the sound of the bay doing its slow work below the deck.
What It Actually Felt Like
I know Ken's explanation makes it sound clinical. It wasn't. Here's what fog star bathing (fog bathing? fog lying? I need a name for this) actually felt like.
For the first few minutes, my brain was annoyed. No stars meant no distraction, no vastness, no awe to fall into. Just gray and damp and the deck boards pressing into my shoulder blades. My pain was loud because there was nothing else.
Then something shifted. Around minute eight. My breathing slowed without me deciding to slow it. I could hear my heartbeat โ not through a stethoscope, just... there, in my ears, the way you can hear it in a very quiet room. And I realized I could feel the fog. Not just the dampness, but the weight of it. The air was thicker than normal. Each breath felt like drinking something.
By minute fifteen, my body stopped feeling like a collection of pain points and started feeling like a shape. Like a whole thing instead of a list of problems. I don't know how else to describe it. The pain was still there but it had been recontextualized โ it was part of the shape instead of the only thing about it.
Why Fog Muffles More Than Sound
Here's a fact I didn't know: fog physically absorbs sound waves. The water droplets suspended in the air dampen high-frequency sounds, letting low frequencies pass through.7 That's why foggy nights feel eerily quiet โ because they actually are. The fog is eating the soundscape.
What gets through is the low stuff: ocean, wind, your own breathing. And research on nature sounds and pain shows that low-frequency natural sounds โ particularly rhythmic ones like waves โ activate the parasympathetic nervous system and increase default mode network activity in ways that promote rest and pain reduction.8
The fog on Alsea Bay wasn't just blocking my view. It was curating my soundscape. Stripping away the high-frequency noise and leaving me with exactly the kind of auditory input that helps a haywire nervous system calm down.
I didn't design this. The coast did.
Ken's Research Notes
The humidity matters too, and not in the way I expected. High relative humidity maintains mucosal hydration in the airways, which reduces the release of inflammatory cytokines like IL-4 and IL-13 that dry air triggers.9 Toni's breathing fog-saturated air at near 100% humidity during these sessions.
Combine that with what we covered in the moonless nights article โ the darkness driving melatonin production, which suppresses NF-ฮบB and reduces IL-6 โ and fog night starts to look less like a failed star bathing session and more like an accidentally optimized sensory environment. Reduced visual input, reduced auditory input, anti-inflammatory humidity, peak darkness for melatonin production, rhythmic low-frequency nature sounds.
Toni stumbled into a natural flotation tank.
The Interoception Thing
Ken used the word "interoception" and I made him explain it three times. Here's the version that finally made sense to me.
Your brain is always toggling between two modes: paying attention to the outside world (what you see, hear, smell โ exteroception) and paying attention to your internal state (heartbeat, breathing, gut feelings, pain โ interoception). It can't max out both at once. When external input is high, internal awareness goes down. When external input drops, internal awareness goes up.3
For most people, that sounds bad. More body awareness = more pain awareness, right?
Not exactly. Research on chronic pain patients shows that they often have disrupted interoception โ not heightened.10 They're hyperaware of pain signals but poorly attuned to other body signals. They can tell you exactly where it hurts but not what their heartbeat feels like, or whether they're hungry or tense. Their interoceptive system is miscalibrated โ some channels stuck on high, others turned way down.
When you remove external stimuli and let the brain focus entirely on the body, something interesting happens: the brain starts recalibrating. It picks up the non-pain signals it's been ignoring. Heartbeat. Breathing rhythm. Temperature changes. Muscle tension patterns. And when those signals get processed alongside the pain signals instead of being drowned out by them, the pain stops being the only internal story.
That's what I felt on the fog night. My body went from a list of pain points to a complete shape. The pain was still part of it, but so was everything else.
Toni's Theory: The Fog Rebalanced My Body Map
With fibromyalgia, I experience my body as a pain map. This joint, that muscle, this tendon. Everything is cataloged by how much it hurts. My brain's model of my body is basically a heat map of pain.
In the fog, with nothing external to process, my brain redrew the map. It added back the temperature data, the pressure data, the breathing data, the heartbeat data. Suddenly my body wasn't just pain โ it was a body. With pain in it, yes. But also with lungs that were pulling in damp salt air and a heart that was beating and hands that were cold and a back that was feeling every groove of the deck boards.
Pain went from 100% of the map to maybe 40% of the map. Same pain, different percentage.
What Works About This (The Practical Stuff)
I've done fog bathing (I'm going with that name) five times now. Three dropped my pain by 2+ points. One had no effect. One actually made it slightly worse โ that was a night I was anxious about something unrelated and the sensory void amplified the anxiety instead of calming anything. So, about 60% success rate, which is better than my clear-night star bathing average.
- Location matters more than weather. You need to be somewhere that genuine quiet is possible. Fog on a busy street isn't the same as fog on a bay. The quiet is the mechanism, not just the fog.
- Dress for wet, not just cold. Fog soaks through everything. I use a waterproof-backed blanket now and wear a layer I don't mind getting damp. The moisture is actually part of why it works, but being miserably wet isn't.
- It takes longer to settle in. Clear-night star bathing, the awe kicks in around minute 10-15. Fog bathing, the shift doesn't happen until minute 15-20 because there's no immediate wow to grab your attention. You have to let the quiet build.
- Don't fight the boredom. The first five minutes are boring. Your brain wants input and there's none. That boredom is the transition โ your brain switching from external seeking to internal listening. Let it happen.
- Skip it on anxious nights. I learned this the hard way. If your brain is already buzzing with worried thoughts, removing all external input gives those thoughts room to get louder. This works best on pain-dominant nights, not anxiety-dominant nights.
Why the Oregon Coast Is Accidentally Perfect for This
I didn't move here for the fog. We moved for the bay, the quiet, the affordability compared to Portland. But it turns out Alsea Bay in fog is something close to a natural sensory reduction chamber:
- Fog 100+ days per year on the central Oregon coast โ mostly October through June.
- Near-zero light pollution (the bay is surrounded by state forest, not development).
- Rhythmic wave sound from the bay, muffled and lowered by the fog into something close to white noise.
- Salt air at near-100% humidity.
- No traffic noise after midnight. The nearest highway is far enough that fog absorbs what little sound carries.
Other coastal and rural locations would work similarly. The point isn't that Alsea Bay is magic. The point is that environments with genuine darkness, genuine quiet, and high humidity naturally create the conditions that pain researchers are trying to replicate in float tanks and sensory rooms.
CEO Incident Report: The Fog Episode
Date: Tuesday. Time: Unreasonable.
Incident: Toni went outside during a fog event. I lost visual contact within four seconds. Alerted the other human by walking on his face. He did not respond with appropriate urgency.
Actions Taken: Relocated to the window. Could not see her. Could not see the bay. Could not see the deck. Could see the dog, briefly, because the dog is large and graceless. Then the fog ate the dog too.
Resolution: Both human and canine returned 43 minutes later, damp, seemingly unharmed. Toni was doing the thing where she moves easier and doesn't wince getting up. I note this for the record.
Recommendation: If the humans insist on disappearing into weather, I require a tracking device. Or treats. Treats would also be acceptable.
โ Samba, CEO
Sweetieport Bay
(Filing this under "Fog Hazards" in the official ledger)
What This Changes About Star Bathing
The fog night changed my understanding of what I've been doing. I thought I was treating myself with awe. Turns out, I was treating myself with environmental sensory reduction, and awe was one delivery method โ the most beautiful one, the one with cosmic scale and ancient light and all the poetic stuff that makes a good blog post. But not the only one.
Here's how I think about it now:
Star bathing works through at least three channels: awe (which reduces self-focus and lowers inflammatory markers), darkness (which drives melatonin production and anti-inflammatory pathways), and sensory reduction (which lets the nervous system recalibrate). On a clear moonless night, you get all three at maximum. On a foggy night, you lose awe but gain deeper sensory reduction โ so two of three channels still fire, and one of them fires harder.
That's why my fog night outperformed some clear nights. The channels are additive, not dependent on each other.
Ken's Research Notes
Nature exposure research is pointing in this same direction. A 2023 systematic review found that nature-based environments reduce pain through multiple parallel mechanisms โ attention restoration, stress reduction, and what they call "soft fascination."11 Forest bathing studies show similar multi-channel effects: parasympathetic activation, cortisol reduction, and improved pain thresholds from just 15 minutes of immersion.12
What Toni's doing on fog nights is a specific variant of nature immersion โ one where the sensory reduction component is maximized because the fog strips everything else away. I wouldn't be surprised if the optimal approach for fibromyalgia turns out to be a combination: fog nights for deep nervous system recalibration, clear moonless nights for the awe + darkness stack. Different tools for different pain profiles.
I don't have a tidy ending for this one. The fog doesn't lend itself to tidy endings โ it just thins out gradually until you can see the bay again, and by then you're cold and damp and either feeling better or not.
But I'll say this: I used to dread the foggy nights because they meant no star bathing. Now I watch the marine forecast and think, okay. Different tool tonight. Same deck. Same body. Different way in.
The coast has more than one way to help. You just have to lie down long enough to let it try.
Sources
- Wackermann J, et al. (2008). "Ganzfeld-induced hallucinatory experience, its phenomenology and cerebral electrophysiology." Cortex, 44(10), 1364-1378. Study PDF โฉ
- Schmidt TT, et al. (2020). "Ganzfeld-induced reduction of thalamo-cortical connectivity." Published findings discussed in: Sulfaro AA, et al. (2025). "And then there was light in the ganzfeld." PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC12360698/ โฉ
- Echalier EL, et al. (2025). "Interoception and pain: body-mind integration, rupture, and repair." PAIN. https://pmc.ncbi.nlm.nih.gov/articles/PMC12168818/ โฉ
- Fibromyalgia Floatation Project (2011). "Floatation REST therapy results in pain relief and relaxation for fibromyalgia patients." International research study, pilot data. Study PDF โฉ
- Khalsa SS, et al. (2021). "Flotation restricted environmental stimulation therapy for chronic pain: A randomized clinical trial." JAMA Network Open, 4(5), e219627. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2779871 โฉ
- Bood Sร , et al. (2006). "Treating stress-related pain with the flotation restricted environmental stimulation technique." Pain Research & Management, 11(4), 217-223. https://pmc.ncbi.nlm.nih.gov/articles/PMC2734516/ โฉ
- Smith C. (2019). "Does fog have a dampening effect on sounds?" The Naked Scientists, Cambridge University. https://www.thenakedscientists.com/articles/questions/does-fog-have-dampening-effect-sounds โฉ
- Buxton RT, et al. (2021). Nature sounds and pain: supported by multiple studies. Additionally: fMRI evidence that natural sounds activate parasympathetic system and default mode network. Overview of research โฉ
- Liu X, et al. (2024). "Association between humidity and respiratory health." BMC Public Health, 24, 3319. https://pmc.ncbi.nlm.nih.gov/articles/PMC11613709/ โฉ
- Di Lernia D, et al. (2020). "Altered interoceptive perception and the effects of interoceptive analgesia in musculoskeletal, primary, and neuropathic chronic pain conditions." Journal of Personalized Medicine, 10(4), 201. https://pmc.ncbi.nlm.nih.gov/articles/PMC7712753/ โฉ
- Tanja-Dijkstra K, et al. (2023). "The effect of nature exposure on pain experience and quality of life." Systematic Review. https://pmc.ncbi.nlm.nih.gov/articles/PMC10538778/ โฉ
- Song C, et al. (2016). "The effects of forest therapy on coping with chronic widespread pain." International Journal of Environmental Research and Public Health, 13(3), 255. https://pubmed.ncbi.nlm.nih.gov/26927141/ โฉ