Imagine you’re a soldier deployed to a war zone. Your days are long and grueling. When you’re not pulling guard duty or bouncing down IED-riddled roads in the back of a mine-resistant vehicle like a Mexican jumping bean, you’re humping ungodly amounts of gear in 110-degree heat.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.