Sympathetic activation fuels intensity; parasympathetic capacity enables recovery, bonding, and multi-session weeks.
Pre: physiological sighs, cold splash, or short walk. During: nasal breathing on lower intervals. Post: progressive muscle release, weighted pressure, glucose, hydration.
Track a simple recovery score 1–10 each morning. Two days under 5 = deload protocol, not toughness theater.
Sleep is the ultimate PED. Guard it like a professional.