by Thomas Tu, postdoctoral research officer, liver cell biology laboratory.
Sometimes the little scientist in me wakes up early. Catching the train, I look around and I’m surrounded by walking, talking, reading ecosystems. Crowding along the platform are sentient islands of interactions between billions of cells. Healthy environments are self-correcting, stable and all work to a common harmonious goal. Mostly, our bodies are no different: many (such as the respiratory, immune, and nervous) systems working together seamlessly. They are deeply complex; each system is composed of organs that are, in turn, made up of tissues that are composed of cells.