Uthayan Thurairajah is a Senior Professional Engineer and Lighting Designer at MMM Group, and teaches Human Factors in Lighting in the Department of Communication and Design at Ryerson University. He is also a research collaborator for the Centre for Aircraft Interiors Research and Innovations (CAIRI) at Ryerson University. Uthayan is member of several Canadian and international professional association including American Holistic Medical Association and Alternative Medicine. He has worked on numerous multi-disciplinary lighting, traffic signals and power projects for the Ministry of Transportation and various Towns, Municipalities, Regions and others. He also has extensive research experience on the value of lighting design in the mental, emotional, and social well-being of a person. He is a frequent presenter and author on lighting design & health.