Medical facilities, by their very nature, can require a particularly deft touch as often times a wide range of needs must be satisfied. Needless to say, a visit to a medical facility and be a stressful experience. As a lighting designer my goal is to provide an environment that is soothing, natural, and inviting. Whenever possible daylighting can and should be introduced. When electric lighting is used it is essential for the source to provide a natural look and feel for patients, visitors, and staff, it is essential for the medical care providers so that proper and accurate diagnoses can be made. As a consultant to the Mayo Clinic and the Mayo Clinic Hospital, these sensitivities were of importance throughout the facilities, but especially so in long-term patient care required in the bone marrow transplant rooms, the oncology research center, and prayer chapel.