Buildings are the body of the built environment- this much I believe to be true! I believe natural ventilation design is often represented of the ebbs and flows of the human body. NV is forcing the delivery of fresh air makes buildings healthier and key to biophilic design. Because the design is biophilic does not relate it to biology but rather the strategic design of the space to operate and refresh air without external systems I think is pretty spectacular and what the human body is ought to do!