Which term describes the body's response to physical demands and strain?

• A. Headwork
• B. Antiauthority
• C. Impulsivity
• D. Physical Stress

Answer: (D)

Physical stress describes the body's reaction to physical demands and strain. When you exert yourself during flight training or operating a drone, your heart rate and breathing quicken, muscles tense, and you may sweat as your body works to supply energy and oxygen where it’s needed. Recognizing this helps you pace yourself, stay hydrated, and plan for breaks so you can maintain safe, effective performance. The other terms relate to mood, behavior, or cognitive traits, not the physiological reaction to physical exertion, so they don’t fit as the description of how the body responds to physical demands.