One of the most important things in design is living in nature and bringing nature in. This is not a decorating principle or an aesthetic preference. It is a biological one. The human body evolved surrounded by living plants, natural light, flowing water, and organic materials for hundreds of thousands of years. The modern sealed home has separated us from these elements more completely than at any point in human history. Biophilic design — the intentional incorporation of natural elements into the built environment — is the practice of restoring that connection, and the research supporting its benefits is substantial and growing.
What Nature Does to the Body Indoors
Plants filter indoor air by metabolizing volatile organic compounds through their root systems and leaf surfaces. They regulate humidity through transpiration — releasing water vapor that moderates dry indoor air. They produce oxygen. And they reduce cortisol. A 2015 study in the Journal of Physiological Anthropology found that active interaction with indoor plants produced measurable reductions in both physiological and psychological stress markers compared to computer-based tasks.
Natural light regulates circadian biology — the 24-hour hormone cycle that governs sleep, metabolism, mood, and immune function. Views of greenery through windows reduce mental fatigue and improve cognitive recovery. Natural materials — the grain of wood, the texture of stone, the weave of linen — activate calming responses in the nervous system that synthetic surfaces simply do not produce. These are documented biological responses with measurable physiological markers, not subjective preferences.
Room by Room
Bathroom: A pothos or peace lily thrives in the humidity and lower light typical of bathrooms — and both are effective air purifiers. Kitchen: Herbs on a windowsill — basil, rosemary, mint, thyme — provide living greenery and fresh cooking ingredients simultaneously. Bedroom: A snake plant converts CO2 to oxygen at night through CAM photosynthesis, making it the ideal bedroom companion. Living room: A fiddle leaf fig, rubber plant, or monstera anchors the room with scale and biological presence. Home office: Plants on or near the desk reduce stress and improve sustained focus — research from the University of Exeter found that enriching a workspace with plants increased productivity by 15%.
Beyond plants: solid wood furniture, natural stone surfaces, linen and cotton textiles, warm natural color palettes, water features, and maximized natural daylight all contribute to a home environment that feels grounded, alive, and restorative. Each natural element is a thread of connection between the built environment and the biological world the body was designed for.
Where To Start
- Add a living plant to every room. Start with low-maintenance species.
- Maximize natural light. Open curtains, keep windows unobstructed.
- Choose natural materials. Solid wood, stone, natural textiles.
The home should be a bridge between the built world and the natural one. Every plant, every window, every natural surface brings the indoor environment closer to the conditions under which the human body thrives. Take care of your home and it will take care of you.
Which room has the most natural elements — and how does it feel compared to the one with the least?