Question

question 3
you only need to think you are in danger for the stress response to activate.
true
false
question 4
cortisol strengthens the bodys immune system.
true
false
question 5
mental stress increases oxygen demand because blood pressure and heart rate are elevated.
true
false

Explanation:

• Question 3: The stress response (fight-or-flight) is triggered by the brain's perception of danger, whether the threat is real or perceived.
• Question 4: Cortisol is a stress hormone that suppresses the immune system over time to prioritize immediate stress responses.
• Question 5: Mental stress activates the sympathetic nervous system, raising heart rate and blood pressure, which increases the body's need for oxygen.

Answer:

Question 3: True
Question 4: False
Question 5: True