Plain English Meaning
The health and body-related issues a pilot needs to think about before and during flying — how things like tiredness, sickness, low oxygen, or medication can affect how well they can fly.
Full Definition
The physiological and psychological conditions affecting a pilot's fitness to fly, including effects of altitude, fatigue, stress, illness, medication, alcohol, dehydration, and other bodily states that can degrade performance in flight.
Context Anchor
Seen in pilot health, human performance, and preflight decision-making discussions, especially when learning how altitude, fatigue, stress, illness, or substances can affect a flight.