The ability to perform 20 sit-ups in a row is categorized as muscle
a. strength
b. endurance.

What does the body do during the resistance phase of the gas model? options: a) it prepares to fight danger or run from it. b) it identifies the primary source of danger. c) it begins to return responses to normal. d) it repairs itself from fatigue and stress.

List several ways that negative life events (death in the family, being laid off, etc) may affect your physical health.

Which of the following statements is true?