Training in the heat: How your body adapts – and when outdoor sports become dangerous
The sun is high, the air is warm, and suddenly a workout that usually feels easy feels significantly harder. Your heart rate rises faster, your legs feel heavy, and even simple exercises require more concentration.
This is not just in your head. Heat significantly changes physiological strain. The body must simultaneously supply the working muscles and dissipate excess heat. To do this, more blood flows toward the skin and sweat production increases.