CDL 25: A rush of endorphins

A combatant must pay a physiological price for an enervating process so intense. The “price” that the body pays is an equally powerful “backlash” when the neglected demands of the parasympathetic nervous system become ascendant. This parasympathetic backlash occurs as soon as the danger and the excitement is over, and it takes the form of an incredibly powerful weariness and sleepiness on the part of the person.