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Lecture 26.docx

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Steve Joordens

PSYA02 Stress Peripheral Nervous System – under relaxation = maintenance - Sympathetic nervous system – the emergency mode - Heart rate increases, blood pressure rises, blood sugar rises, blood flow directed to internal organs - Breathing deeper and faster - Digestion stops, perspiration increases - Adrenal glands secrete adrenaline - Fight-or-flight response - Cortex – amygdala – hypothalamus activation – spinal cord – adrenal gland (ancestral response) - Hypothalamus – pituitary gland – cortisol (important under stress situations) General Adaptation Syndrome - Our body was meant to deal with short term stresses - Most stresses are long term stress responses - There are three phases based on this (alarm, resistance and exhaustion) - Alarm = mobilization of resources - Resistance = coping - Exhaustion = depletion of resources There is a direct relation between the stress a person is under and physical conditions - The concept of lying is a non-physical thing - Stress is a non-physical thing…how do humans interact (threat of what happens in the future) - Has very physical effects on the body - Weight gain, migraines, flares based on skin issues, hair loss, depression (correlational than causational) The Big Picture (Mind-Body Issue) - Whether something is a “stressor” or not is psychological…how you view it or think about it - So the psychological clearly can affect the physical…whic
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