Get full text access Log in, subscribe or purchase for full access. References 1. Chalmers, S. ∙ Siegler, J. ∙ Périard, J. Sport and exercise in the heat: Guidelines, performance, and acclimation J Sci Med Sport. 2026; 29(4):e1-e2 2. Tartarini, F. ∙ Smallcombe, J.W. ∙ Lynch, G.P. ... The Sports Medicine Australia extreme heat risk and response guidelines and web tool J Sci Med Sport. 2025; 28(9):690-699 3. Vargas N, Chalmers S, Jay O (guest editors) (2021).