Racing in 120-degree heat and losing 5 pounds of fluid takes a heavy toll....

https://uniform-wiki.win/index.php/Do_NASCAR_Drivers_Really_Lose_10_Pounds_During_a_Race%3F_The_Truth_from_the_Garage

Racing in 120-degree heat and losing 5 pounds of fluid takes a heavy toll. Recovery is finally evolving. We look at new ways drivers manage sleep and travel fatigue, from tinctures with 15-minute onset to data-driven inflammation control.