RS Episode 10-Why are we still painting everything grey?

Colour and design are more than just paint colour and pillows. As humans, we respond to our environment on a deeper level than most people realize.

Transcript

Podcast Script – Renovation Secrets

“Why Are We still painting everything grey? Colour, Neuroscience & the Missing Biology of Design”

Today, we’re diving into one of my favourite topics inside the WELLbuilt framework:

Colour, neuroscience, and biophilia.

Welcome back to Renovation Secrets, the podcast where we pull back the curtain on what’s really happening inside our homes — and why so many spaces that look beautiful on Instagram still somehow leave people feeling tired, overstimulated, disconnected, or just… off.

Honestly? This conversation goes way deeper than paint colours and throw pillows.

Because what if I told you that the environments we create are constantly communicating with the brain… whether we realize it or not?

Your nervous system is reading a space long before your conscious mind decides whether you “like” it.

And I think we’re starting to see the consequences of what happens when our environments stop feeding the brain the stimulation it biologically expects.

WE HAVE BLEACHED THE WORLD

I’ve been noticing something over the last several years.

The world has slowly become… beige.

Not just interiors.

Cars.

Furniture.

Architecture.

Retail stores.

Technology.

Even branding.

Everything has shifted toward flat neutrals, soft greys, muted palettes, low contrast, minimal detail.

And listen — I understand why minimalism became attractive. Simplicity can absolutely reduce cognitive overload in the right context.

But there’s a difference between calm… and sensory starvation.

And I genuinely believe part of what we’re seeing is the environmental adaptation to screen culture.

I had a fascinating conversation recently where someone mentioned that television shows are even simplifying storylines because audiences are multitasking while scrolling on their phones.

Think about that for a second.

We’re designing entertainment around divided attention.

And I think our environments have followed the same trajectory.

Homes are becoming quieter visually because our brains are already overloaded digitally.

The problem is… humans did not evolve inside smooth white boxes staring at glowing rectangles all day.

We evolved in layered, textured, dynamic natural environments.

The brain expects variation.

Pattern.

Depth.

Movement.

Colour shifts.

Natural materials.

Light changes.

Texture.

Complexity.

Not chaos — but richness.

And when we remove too much of that environmental information, something interesting starts happening psychologically and physiologically.

People begin feeling disconnected from their environments.

THE BRAIN EXPERIENCES SPACE BEFORE WE DO

There’s an entire field of study called Neuroaesthetics.

And this field is helping us understand something designers have intuitively known for centuries:

Beauty is not frivolous.

It is biological.

The brain is constantly evaluating environments for safety, stimulation, stress, and comfort.

Before someone consciously notices a room, their nervous system has already begun processing:

• lighting 
• acoustics 
• spatial proportions 
• texture 
• colour 
• materiality 
• pattern 
• symmetry 
• movement 
• even ceiling height 

This happens automatically.

And certain environments can either support the nervous system… or subtly stress it.

There’s fascinating research from people like Stephen Kellert, Judith Heerwagen, and Don Ruggles exploring how humans respond to environmental cues rooted in nature and evolutionary biology.

Because the brain does not separate us from our environment.

It sees us as part of it.

WHAT IS BIOPHILIA?

So let’s talk about biophilia.

Biophilia is essentially the idea that humans have an innate biological connection to nature.

Not as a trend.

Not as “put a plant in the corner.”

An actual biological relationship.

And when people hear biophilic design, they often imagine huge green walls and luxury spas.

But true biophilic design is much deeper and more subtle than that.

It can include:

• natural materials like wood and stone 
• organic textures 
• fractal patterns 
• changing daylight 
• natural airflow 
• visual depth 
• prospect and refuge 
• water movement 
• natural colour palettes 
• tactile variation 
• layered sensory experiences 

The reason these things matter is that the brain recognizes them.

Nature contains mathematical and visual patterns that humans have evolved with for thousands of years.

Fractals are a perfect example.

Fractals are repeating patterns found constantly in nature:

• tree branches 
• coastlines 
• clouds 
• leaves 
• river systems 

Research has shown certain fractal patterns can actually reduce stress responses in the brain.

Not metaphorically.

Physiologically.

Your body reacts differently.

That’s incredible.

SEGMENT 4 — WHY MODERN ENVIRONMENTS FEEL SO EXHAUSTING

Now here’s where things get really interesting.

Modern environments often contain two extremes:

Either:

• overstimulation from technology, noise, glare, notifications, and constant digital input 

OR

• under-stimulation from flat, sterile, lifeless environments 

And both can create problems.

A completely sterile environment may look “clean” aesthetically, but the brain can perceive it as emotionally cold or psychologically unengaging.

At the same time, chaotic environments overwhelm the nervous system.

So the goal is not maximal stimulation.

It’s balanced stimulation.

This is where thoughtful colour and environmental layering become incredibly important.

COLOUR IS NOT JUST DECORATION

Colour has been massively oversimplified in the design industry.

Most conversations revolve around trends:

• warm white vs cool white 
• greige vs taupe 
• what’s “in” 
• resale value 

But colour affects:

• perception 
• mood 
• alertness 
• emotional tone 
• spatial experience 
• even physiological responses 

And no, this doesn’t mean “blue rooms make you sad” and “yellow rooms make you happy.”

Human response to colour is far more nuanced than that.

Saturation matters.

Contrast matters.

Lighting matters.

Texture matters.

Materiality matters.

Context matters.

A deeply saturated forest green in matte limewash feels entirely different than the exact same colour in a high-gloss synthetic finish.

The brain reads both differently.

And what fascinates me is how much chroma and richness have disappeared from our environments over the last decade.

We’ve become afraid of colour.

Afraid of personality.

Afraid of visual depth.

Everything became “safe.”

And ironically, I think we’ve accidentally created environments that don’t emotionally feed people anymore.

NATURAL MATERIALS SPEAK TO THE BRAIN

One of the things I always explain to clients is that the brain responds differently to authentic materials.

Real wood ages differently.

Natural stone reflects light differently.

Linen behaves differently.

Even imperfections matter.

The slight irregularities found in natural materials create visual richness the brain finds engaging without overwhelming.

Compare that to perfectly flat synthetic environments.

The brain notices the difference even if the homeowner can’t explain why one space feels better than another.

This is also why heavily reflective environments can sometimes feel subtly stressful.

High-gloss surfaces, excessive glare, polished materials everywhere — they create visual tension.

Whereas matte finishes tend to feel visually quieter and more grounding.

Again… biology.

Not trend.

WE ARE LOSING ENVIRONMENTAL ENGAGEMENT

I think one of the biggest hidden issues today is that people no longer meaningfully engage with their environments.

We engage with screens.

And the environment becomes background noise.

But our surroundings still affect us.

Constantly.

Lighting affects circadian rhythm.

Acoustics affect stress hormones.

Air quality affects cognition.

And colour, texture, and biophilic cues affect emotional regulation and nervous system responses.

This is exactly why the WELLbuilt framework treats these systems as interconnected human performance tools — not decorative upgrades.

Because homes should do more than photograph well.

They should support human beings well.

WHAT PEOPLE CAN DO RIGHT NOW

Now before everyone panics and starts repainting their entire house emerald green…

This doesn’t require creating a jungle house.

Small changes matter.

Introduce:

• natural textures 
• layered lighting 
• authentic materials 
• warmer dimensional finishes 
• tactile fabrics 
• visual depth 
• subtle colour variation 
• plants 
• organic shapes 
• artwork with emotional resonance 
• materials that age naturally 

And honestly?
 Sometimes the answer is simply making spaces feel human again.

Not perfect.

Human.

CLOSING

The more neuroscience and environmental psychology evolve, the clearer one thing becomes:

Our homes are not passive containers.

They are active participants in our health, stress levels, emotional state, focus, sleep, and overall well-being.

And yet most people still approach design as if aesthetics and biology are separate conversations.

They aren’t.

The environments we create shape how people feel every single day.

That’s one of the core principles behind WELLbuilt.

Not designing for trends.

Not designing for social media.

Designing for human performance, human experience, and human well-being.

Because the future of great design is not just beautiful spaces.

It’s spaces that biologically support the people living inside them.

And honestly… I think we’re just getting started.

Thanks for joining me for this episode of Renovation Secrets.

If this conversation changed the way you think about your environment, I’d love for you to share this episode, leave a review, or send it to someone planning a renovation or new build.

And if you want to learn more about the WELLbuilt framework and how these principles can transform residential design, you can visit Detail by Design.ca/WELLbuilt.

I’ll see you in the next episode. Thanks goes to Hill Makes Music for our intro clip