After eleven years in the garage, I know the physical toll of a race weekend....

https://www.runway-bookmarks.win/racing-takes-a-heavy-toll-between-120-degree-cockpit-temps-and-5-lb-sweat

After eleven years in the garage, I know the physical toll of a race weekend. Drivers regularly endure 120-degree cockpit temperatures and 5 to 10 pounds of sweat loss during a single stint. Recovery has evolved beyond just catching a flight home