Presented by the Designers Lighting Forum of New York

March 19–20, 2024
New York Hilton Midtown, New York City

2020 PANEL DISCUSSION: What’s The Deal with Healthy/Circadian/Human-Centric/WELL Lighting? And How Does It Impact Design?

PANEL DISCUSSION: What's The Deal with Healthy/Circadian/Human-Centric/WELL Lighting? And How Does It Impact Design?

Tuesday, August 18
2:00pm – 3:30pm


Credits: 1.5 AIA LU HSW

This course takes an overview of the various conversations, recommendations, and certifications around the idea of healthy lighting, and distills what the audience needs to know as an industry. The presentation will delve deeper into the science behind all these conversations to see where they come from, and where they overlap. Finally, the focus will shift to what everyone really wants to know: How does this affect us? What is the impact of healthy lighting for designers, manufacturers, clients, and end users?

Learning Objectives:

  1. Discuss the science behind circadian rhythms and human health
  2. Understand the various current metrics and standards for circadian lighting
  3. Understand the impacts that circadian lighting has on design and implementation of projects
  4. Identify the appropriate level of lighting controls for a building’s individual needs


Dorothy Underwood
Associate, KGM Architectural Lighting

Dorothy is an Associate at KGM Architectural Lighting, where she manages a variety of projects, from sports arenas to high end residential, including key projects such as the new NFL stadium in Los Angeles, and the award-winning Ballroom Renovation at the New York Botanical Gardens. She holds an MS in Architectural Sciences with a Concentration in Lighting, as well as a B.Arch from Rensselaer Polytechnic Institute in Troy, NY. Dorothy worked in a variety of design positions before becoming a lighting designer, including interning at architecture firms, and working as a lighting applications specialist. These experiences have helped to strengthen her understanding of not just lighting, but the surrounding professions as well. Dorothy holds LC and LEED AP BD+C certifications and is an Associate member of IALD. She previously presented a seminar on circadian lighting at LEDucation 2019 titled “The Design Implications of Circadian Lighting.”

Kassandra Gonzales
Lighting Design Specialist, RAB Lighting

Kassandra works at RAB Lighting as a lighting design specialist. She holds an MS in Lighting from Rensselaer Polytechnic Institute, as well as a BS in Interior Design from Texas State University in San Marcos, TX. After graduation, Kassandra became a research specialist for the Light and Health program at the LRC. While working there, she developed circadian lighting designs for several settings that included offices, hospitals, and residential facilities for older adults. She also conducted research into the effects of light on human health and well-being. She is an associate member of the Illuminating Engineering Society and serves on the Aged and Partially Sighted Lighting Committee. She has presented on circadian lighting for the Patricia DiMaggio Memorial Fund in New York, in a lecture titled, “Designing with Circadian Stimulus.” She has also presented for the Ohio IES section in Columbus, Ohio on healthcare lighting. She is a recipient of the IESNYC Thesis Prize in 2015 and presented her thesis at the Building Energy Exchange, titled, “Lighting Patterns for Senior Care.”

Lesa Lorusso
Healthcare Director of Research & Innovation, Gresham Smith

Lesa is a firm-wide resource at Gresham Smith, strengthening healthcare planning and design through research and innovation. She collaborates with the healthcare team to facilitate human-centered design and development and implementation of research strategy and scalable tools for knowledge sharing among healthcare planners and designers. She implements design thinking strategies throughout the healthcare practice and advise the Gresham Smith team on evaluative methodologies regarding healthcare facilities. Key roles involve identifying opportunities for EBD research and leading strategic implementation of research projects and developing external collaborative partnerships.