5 December 2025

9:00 AM – 9:45 AM

Amphi Grand Kursaal

Philémon Marcel-Millet

Philémon is a researcher at the Armed Forces Biomedical Research Institute (France), within the Exercise Physiology and Activities in Extreme Conditions unit. His work focuses on human thermophysiology in hot environments. His research focuses on two main areas: understanding the pathophysiological mechanisms involved in heat stroke related to physical exercise in order to improve prevention; and developing heat acclimatization protocols adapted to exposed professionals, such as firefighters and workers in hot environments, with the aim of improving their safety.

Humans facing climate change: is the body reaching its limits?

The human body is remarkably efficient at regulating its temperature around 37°C, thanks to mechanisms such as perspiration and vasodilation. This stability is the result of millions of years of evolution. However, due to climate change, the frequency and intensity of heat waves are increasing, sometimes beyond what our physiology can withstand. How far can we push our limits? Can we live, work, and survive at 104°F, 113°F, or even higher? In this lecture, we will explore the thermal limits of human beings and question our margins of adaptation. How far can the body adapt? Are we all equal in the face of heat? What strategies can mitigate heat stress, and for whom?