03/07/2026
We often think about health as something determined by our genes… but genetics are only part of the story.
The exposome describes the total collection of exposures that influence our health over time — from the food we eat and the air we breathe to our stress levels, sleep patterns, and even the microbes living in our gut.
In functional medicine, we look at health through this broader lens because chronic symptoms rarely come from a single cause. Instead, they emerge from the interaction between multiple domains:
• Internal biology (inflammation, hormones, metabolism)
• Lifestyle habits (nutrition, sleep, movement, stress)
• Environmental exposures (toxins, pollutants, built environment)
• The microbiome (gut and skin microbes that influence immunity and metabolism)
The encouraging part?
Many of these domains are modifiable.
Small, consistent changes in diet, lifestyle, and environment can shift the terrain of the body toward greater resilience and better long-term health.
