Welcome to your daily hub The provided source is a research article investigating how heat stress affects exogenous carbohydrate oxidation during prolonged running, even when euhydration is maintained. Ten trained runners completed two 100-minute trials—one in a temperate environment (19°C) and one in a hot environment (34°C)—while consuming a glucose solution and replacing most of their fluid losses. The key findings indicate that running in the heat reduced both average and peak exogenous...