Science2015Australiahigh confidence

Researchers studied bushfire fighters' responses to three consecutive days of simulated firefighting tasks conducted at 33°C or 19°C.

Notes on verification

Confirmed by the primary peer-reviewed PLOS ONE study (Larsen et al., 2015) and consistent listings on PubMed and PMC, describing the exact study design of three days of simulated firefighting at 19°C vs 33°C.

Sources