Most pilot performance failures aren't skill failures; they're state failures. Blood sugar crashes, dehydration, chronic stress, and poor sleep quietly degrade judgment long before a checklist is missed. This session breaks down four physiological systems driving cockpit performance (glucose, stress hormones, hydration, and sleep) and gives five practical habits pilots can use before their next flight. Calm, regulated physiology isn't the absence of precision. It creates it. Session type: Forum — Skyfarer is not affiliated with the Experimental Aircraft Association (EAA) or EAA AirVenture Oshkosh. This session is listed for informational purposes from the official AirVenture 2026 schedule. Times and locations can change during the event — verify on the official session page: https://events.rdmobile.com/Sessions/Details/3574103