Finnish soldier Aimo Koivunen overdosed on amphetamines while escaping Soviet forces during WWII. After regaining consciousness, he skied more than 250 miles, survived a land mine, and lay in a ditch for a week eating only pine buds and a raw bird. When he was rescued, his heart rate was still over 200 bpm and he weighed only 94 lbs. – WTF Fun Facts
Source: https://www.warhistoryonline.com/instant-articles/high-on-speed-and-delirious.html