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The Body’s Stress Response

The Body’s Stress Response. The body and mind go on high alert The hypothalamus is excited Autonomic nervous system is activated The pituitary gland is activated. Stage 1 - Alarm. The pituitary gland secretes a hormone This activates the adrenal glands The adrenal glands secrete adrenaline

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The Body’s Stress Response

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  1. The Body’s Stress Response

  2. The body and mind go on high alert • The hypothalamus is excited • Autonomic nervous system is activated • The pituitary gland is activated Stage 1 - Alarm

  3. The pituitary gland secretes a hormone • This activates the adrenal glands • The adrenal glands secrete adrenaline • Fight or flight response Stage 1 - Alarm

  4. Called the “emergency hormone” • Heart rate speeds up • Pumps more blood to muscles and brain • Breathing becomes faster and deeper • May feel flush • Throat muscles may contract Stage 1 – Alarm: Adrenaline

  5. The body tries to return to normal and repair damage from stressful event • If the body is under prolonged stress, resistance stress occurs • Physical resistance reaches its peak • This is why people can do amazing things is stressful situations Stage 2 - Resistance

  6. When the body is continually exposed to a stressor, the mind becomes worn down. • A person’s activity level is lowered Stage 3 - Fatigue

  7. Physical Fatigue • Occurs at the end of a long day or exercise • The body produces waste products, such as lactic acid and carbon dioxide • The buildup of waste products can produce soreness in the muscles, a weakness of muscle strength. Stage 3 – Fatigue: 3 Types

  8. Pathological Fatigue • The overworking of the body’s defenses • Anemia, the flu, obesity, all bring on pathological fatigue • Alcohol and drugs can also cause this Stage 3 – Fatigue: 3 Types

  9. Psychological Fatigue • This results from constant worrying, over working, depression, boredom, isolation, and more. Stage 3 – Fatigue: 3 Types

  10. Readp214-223 in the book • Take your own notes • Complete #1-3 on page 218

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