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

https://www.4shared.com/office/ZNyWsmuyge/pdf-26036-60013.html

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