Have you ever sat by a campfire and found yourself unable to look away? Or noticed that the sound of a fountain or stream seems to quiet your thoughts almost immediately? These experiences aren't random preferences — they're neurological responses to specific environmental inputs that your brain is hardwired to find calming.
Rob Bingham of Outdoor Lighting Perspectives recently explored this with brain health expert Dr. Joe Croissanti, and their conversation reveals how the principles of campfire neuroscience can be applied to backyard lighting design — with real, measurable effects on stress levels and brain state.
*Watch the full conversation below.*
The neuroscience of the campfire
Dr. Joe introduces the campfire effect as one of the most powerful and consistent neurological relaxation responses in human biology. "Traditionally we were safe by fires," he explains. "You'd set a fire, cook by it, have community by it — but it was your primary safety. And so our brains naturally start to relax" in the presence of warm, flickering, amber light.
The specific brain state associated with this response is the alpha state — a relaxed, alert, meditative state characterized by alpha-wave brain activity. It's the state athletes call "the zone": clear-headed, focused but not stressed, present without being hypervigilant. "It's easier to get into the alpha state," Dr. Joe notes, "when you're not always looking for threats or trying to perceive threat."
What triggers this state isn't just the warmth of the light or its color temperature (though both matter, as we covered in our previous post on 2,700K). It's specifically the variation — the randomness of flickering flames, the unpredictable dance of light and shadow. "The randomness of the flames helps us get into that alpha state," Dr. Joe says. "It's almost like a visual massage for your brain, just kind of causing you to relax."
Static bright light keeps you alert — dynamic warm light relaxes you
This is one of the most counterintuitive insights in the conversation: it's not that more light is better, or that brighter light is more relaxing. In fact, the opposite is often true.
"Too much light and you don't settle down," Dr. Joe says bluntly. A uniformly bright yard — everything at maximum intensity, all at the same level — gives your brain no dynamic input to process. It just stays alert. This is why a well-designed outdoor lighting system uses layers: some lights near, some far, some low, some at mid-height, some lighting ground-level features and some reaching up into trees. The depth and variation in the lighting environment is what gives your brain the dimensional, dynamic input it responds to.
Adding water features takes this further. "If you can't have fires," Dr. Joe says, "one of the things you can do is have a fountain." The combination of warm ambient light, the visual movement of water, and the sound of flowing water stacks multiple calming inputs simultaneously. Each one triggers a version of the same ancient neurological signal: you are safe, you are in a good place, you can rest.
Sound as a sensory layer
Dr. Joe and Rob spend time in their conversation discussing the role of sound in completing the sanctuary experience. And the answer is nuanced — it's not that any relaxing sound works equally well.
"The crackle of a fire is going to be universal," Dr. Joe says. "The bubbling of a fountain, almost like a stream — that would be universal too." After that, it becomes more individual: some people find birdsong restorative, others respond to crickets or frogs, others to ambient environmental sounds.
What the universal sounds have in common is that they're natural, unpredictable, and associated in human evolutionary history with safe, resource-rich environments. A bubbling stream meant fresh water. Birdsong meant no immediate predators. Crickets meant a quiet, undisturbed night. Your brain reads these sounds as environmental safety signals, layering on top of the visual signals your outdoor lighting is already providing.
Creating the campfire effect in your Everett area backyard
You don't need an actual fire to create the neurological conditions of a campfire experience. The elements that matter — warm amber light, visual variation, natural sound, a sense of defined safe space — can all be created through thoughtful outdoor lighting design combined with the natural features of a Pacific Northwest yard.
For homeowners across Snohomish County and the North Sound area, this has a particularly useful application. Rain on lit branches and leaves creates exactly this kind of dynamic, calming visual variation — meaning your outdoor sanctuary can be as restorative in January as it is in July.
The key design principles, drawing from Dr. Joe's framework:
Warm color temperature — 2,700K or lower, to trigger the amber-light relaxation response and support melatonin production.
Layered depth — lights at multiple distances and heights to create visual dimensionality and avoid the flat, alert-inducing uniformity of a single-level floodlit yard.
Dynamic elements — water features, trees with leaves that move in the wind, any element that introduces gentle unpredictable variation into the visual field.
Defined perimeter — coverage that extends to the edges of your yard, eliminating the dark perimeter that keeps your brain in threat-scanning mode.
Appropriate intensity — not too bright. The goal is a soft, enveloping ambient glow, not stadium lighting.
Ready to design your sanctuary?
We offer a completely free nighttime design consultation and demonstration at your property — we set up your lighting design and show you the result after dark before a single fixture is permanently installed.
Call us at (425) 428-6309 or schedule at outdoorlights.com/north-sound
Frequently asked questions
What is the campfire effect in outdoor lighting?
The campfire effect refers to the neurological relaxation response triggered by warm, amber-toned, gently variable light — the kind produced by fire. Research suggests this response is deeply wired into human biology: for most of human history, firelight represented safety, community, and shelter. When the brain detects warm amber light with gentle variation (flickering, reflections on water, movement through leaves), it tends to shift from an alert, cortisol-elevated state to a relaxed alpha-wave state. Professional outdoor lighting design can recreate aspects of this effect through warm color temperatures (2,200K–2,700K), layered depth, and the incorporation of water features or other dynamic elements.
Do water features improve the relaxation benefit of outdoor lighting?
Yes. Water features add an important auditory and visual layer to the outdoor sanctuary experience. The sound of moving water — a fountain, a small stream, a pond — is, like warm amber light, deeply wired into human biology as an environmental safety signal: in evolutionary terms, moving water meant a safe, resource-rich location. When combined with warm outdoor lighting, the visual movement of lit water also introduces the kind of gentle, unpredictable variation that helps the brain shift into the relaxed alpha state associated with the campfire effect.
Why does sitting outside feel more restorative than sitting inside?
Being outdoors activates more sensory channels simultaneously — visual, auditory, olfactory, and sometimes tactile — in ways that tend to stack calming inputs rather than stimulating ones. The natural variability of outdoor environments (moving leaves, shifting light, ambient sounds) provides gentle, unpredictable sensory input that supports the alpha brain state associated with relaxation and mental restoration. A professionally designed outdoor lighting system enhances this effect after dark by providing warm, layered illumination that extends the usability of outdoor space while supporting the sensory conditions the brain finds naturally restorative.