Sometimes being a man means getting punched or kicked in the face. If you find this keeps happening, you can either reevaluate your life choices, or learn how to cut your recovery time short like a boss.
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.