Drivers face 120-degree cockpit temps and shed up to 10 pounds of sweat each...

https://speedwaydigest.com/index.php/news/regional-racing-news/887335-how-recovery-is-redefining-performance-in-motorsports/

Drivers face 120-degree cockpit temps and shed up to 10 pounds of sweat each race. We are moving beyond old-school habits. This look at modern recovery explores how teams manage inflammation, sleep, and travel fatigue to stay sharp on the road.