1. Stress can affect you in both positive and negative ways.

2. stress
perception
stressor
psychosomatic response

3. What Is Stress?
How you think about a challenge determines whether you will experience positive or negative stress.
Feeling stress is a natural part of life. Stress is the reaction of the body and mind to everyday challenges and demands.

4. What Is Stress?
How much the stress of an event affects you, however, depends in part on your perception of it.
Perception
The act of becoming aware through the senses

5. Stress can have both a positive and a negative effect.
Reacting to Stress
Stress can have both a positive and a negative effect.
Negative stress can cause you to feel distracted, overwhelmed, impatient, frustrated, or even angry. It can harm your health.
Positive stress can motivate you and inspire you to work harder.

6. Causes of Stress
Stressors vary among individuals and groups.
People, objects, places, events, and situations are all potential stressors.

7. The effect of a stressor depends on your experiences and perceptions.
Causes of Stress
The effect of a stressor depends on your experiences and perceptions.
Stressor
Anything that causes stress

8. Your Body’s Response to Stressors
Stressors activate the nervous system and specific hormones.
When you perceive something to be dangerous, difficult, or painful, your body automatically begins a stress response.

9. Your Body’s Response to Stressors
The stress response involves three stages.
Your mind and body go on high alert. This “fight-or-flight” response prepares you to defend yourself or to flee from a threat.
Alarm
If exposure to a stressor continues, your body adapts and reacts to the stressor. This stage lasts for a brief period.
Resistance
If exposure to stress is prolonged, you begin to tire and lose the ability to manage other stressors effectively.
Fatigue

10. Your Body’s Response to Stressors
Alarm begins when the hypothalamus, a small area at the base of the brain, receives danger signals from other parts of the brain. The hypothalamus releases a hormone that acts on the pituitary gland.

11. Your Body’s Response to Stressors
The pituitary gland secretes a hormone that stimulates the adrenal glands.

12. Your Body’s Response to Stressors
The adrenal glands secrete adrenaline. Adrenaline is the “emergency hormone” that prepares the body to respond to a stressor.

13. Your Body’s Response to Stressors

14. Stress and Your Health
Ongoing stress affects all aspects of your health.
The physical changes that take place in your body during the stress response can take a toll on your body.

15. Prolonged stress can lead to a psychosomatic response.
Stress and Your Health
Prolonged stress can lead to a psychosomatic response.
Psychosomatic response
A physical reaction that results from stress rather than from an injury or illness

16. The Physical Effects of Stress
Stress and Your Health
The Physical Effects of Stress
Headache
A weakened immune system
High blood pressure
Bruxism, clenching the jaw or grinding the teeth
Digestive disorders

17. Mental/Emotional and Social Effects of Stress
Stress and Your Health
Mental/Emotional and Social Effects of Stress
Difficulty concentrating
Irritability
Mood swings

18. After You Read Reviewing Facts and Vocabulary
Define the word perception.
The act of becoming aware through the senses

19. After You Read Reviewing Facts and Vocabulary
What are three cognitive stressors for teens?
Poor self-esteem, personal appearance, not fitting in

20. After You Read Reviewing Facts and Vocabulary
Identify the two body systems involved in the stress response.
Nervous and endocrine systems