1. Section 3.2 How Stress Affects Your Body Objectives
List in order the three stages of the body’s response to stress.
Identify four types of early warning signs for stress.
Describe the relationship between stress and illness.

2. Health Stats Is there a relationship between stress and the risk of catching a cold?
Predict why being in a prolonged stressful situation might increase the likelihood of getting a cold.

3. Stages of Stress The body’s response to stress occurs in three stages
the alarm stage
the resistance stage
the exhaustion stage

4. Alarm Stage Fight-or-Flight Response
1) Adrenaline released into blood.
6) Flow of blood to
skin reduced.
Sweating increases. 3 8
2) Heart rate and blood
pressure increase. 10 2 4
7) Flow of blood to digestive
system reduced. Digestion
slows. More stomach acid
produced.
3) Flow of blood to brain
increases. 7 5 1
4) Breathing rate increases.
8) Pupils open wide. 9
5) More sugar released
into blood. Ability of
blood clot increases. 6
9) Muscles tense. More energy
produced by cells.
10) Lump forms in throat
as muscles contract.

5. Resistance Stage
During this stage, your body adapts to the continued presence of the stressor.
The work that your body does during the resistance stage uses up a lot of energy. As a result, you may become tired, irritable, and less able to handle any added stress.

6. Exhaustion Stage
Your body can no longer keep up with the demands placed on it.
Your physical and emotional resources are depleted.
Exhaustion occurs only if a stressor continues for a long time—usually weeks, months, or even years.

7. Recognizing Signs of Stress

8. For: More on how to recognize stress
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9. Stress and Illness
Stress can trigger certain illnesses, reduce the body’s ability to fight an illness, and make some diseases harder to control.
Stomachaches
Asthma
Headaches
Lowered Resistance to Disease
Heart Disease

10. Vocabulary fight-or-flight response
The initial reaction of the body to stress during the alarm stage.

11. QuickTake Quiz
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12. Click on this slide to end this presentation.
End of Section 3.2
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