As the scientific understanding of health continues to evolve, so too does the ability to address complex issues of promoting wellness through the built environment. Recent discoveries in neuroscience, for example, have led to new insights in light’s impact on the human brain, opening the door for addressing sleep disruption through improvements in lighting design. It is likely that similar discoveries will continue to be made. The WELL Building Standard embraces the creative thinking that is needed to address the complex ways in which interior spaces contribute to health and wellness.