Section 3.2 How Stress Affects Your Body Slide 1 of 11 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. Section 3.2 How Stress Affects Your Body

Section 3.2 How Stress Affects Your Body Slide 2 of 11 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.

Section 3.2 How Stress Affects Your Body Slide 3 of 11 The body’s response to stress occurs in three stages Stages of Stress the alarm stage the resistance stage the exhaustion stage

Section 3.2 How Stress Affects Your Body Slide 4 of 11 Alarm Stage 4) Breathing rate increases. 5) More sugar released into blood. Ability of blood clot increases. 6) Flow of blood to skin reduced. Sweating increases. 8) Pupils open wide. 10) Lump forms in throat as muscles contract. 3) Flow of blood to brain increases. 2) Heart rate and blood pressure increase. 7) Flow of blood to digestive system reduced. Digestion slows. More stomach acid produced. 1) Adrenaline released into blood. 9) Muscles tense. More energy produced by cells Fight-or-Flight Response

Section 3.2 How Stress Affects Your Body Slide 5 of 11 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. Resistance Stage

Section 3.2 How Stress Affects Your Body Slide 6 of 11 Your body can no longer keep up with the demands placed on it. Your physical and emotional resources are depleted. Exhaustion Stage Exhaustion occurs only if a stressor continues for a long time—usually weeks, months, or even years.

Section 3.2 How Stress Affects Your Body Slide 7 of 11 Recognizing Signs of Stress

Section 3.2 How Stress Affects Your Body Slide 8 of 11 Click above to go online. For: More on how to recognize stress

Section 3.2 How Stress Affects Your Body Slide 9 of 11 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

Section 3.2 How Stress Affects Your Body Slide 10 of 11 Vocabulary fight-or-flight response The initial reaction of the body to stress during the alarm stage.

Section 3.2 How Stress Affects Your Body Slide 11 of 11 QuickTake Quiz Click to start quiz.

Section 3.2 How Stress Affects Your Body Slide 12 of 11 End of Section 3.2 Click on this slide to end this presentation.