The garage used to view fatigue as a badge of honor, but teams now treat it...

https://reliabless.com/the-reality-of-cbd-in-motorsports-federal-legality-and-performance-recovery/

The garage used to view fatigue as a badge of honor, but teams now treat it like a mechanical failure. With 120-degree cockpit temperatures and up to ten pounds of sweat loss per race, recovery is no longer an afterthought