After eleven years on the circuit, I have seen how demanding a race weekend is...

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

After eleven years on the circuit, I have seen how demanding a race weekend is on the body. Drivers face 120-degree cockpit temperatures and five to ten pounds of sweat loss during a single event