Dr. Gagnon gained knowledge in the field of occupational health and safety from working at the Finnish Institute of Occupational Health from 2010 to 2014. His work involves investigating the effects of environmental factors and temperature on human metabolism in various populations. From his work, he is particularly looking into: 1) the use of fat and sugar during cold and warm exposure during physical work and how it relates to fatigue, 2) the influence of working in cold and warm conditions on the immune system, and 3) how oxygen availability and use is altered under thermal stress during physical work.