GHTH 100 1st Edition Lecture 3 Outline of Last Lecture I. Chapter 1: Taking Charge of your HealthII. PreventionsOutline of Current Lecture I. Chapter 2: StressII. Actions of the Nervous SystemCurrent LectureI. Chapter 2: Stress- What is stress? Stress refers to two different things: -Situations that trigger physical and emotional reactions-Reactions themselves- Stressor- The situation- Stress Response- the reactions-The stressors we experience are taken into our brain through various senses. Could be sight, smell, hearing, touch, taste. Ex.) Smelling a cologne an old boyfriend wore-loud sounds lead to increased heart rate-touch can be comforting like a hug, or make you angry like if you get shoved, or if you touch something hot, you’ll pull away quickly and your heart rate will increase.- Spicy food can make you tear up or sweat.- Physical Responses to StressorsThere are two different systems in the body that are responsible for physical responses:-Nervous system and Endocrine system- They act in similar ways: they have rapid chemical reactions affecting almost every part of your body, and are primed to act quickly and appropriately.II. Actions of the Nervous System- Parasympathetic Division- Relaxed- Sympathetic Division- arousal, neurotransmitters- Norepinephrine (used by the sympathetic nerves) These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Actions of the Endocrine System- Glands, tissues, and cells that help control bodily funtions- Hormones- Helps prepare the body to respond to stressTwo Systems together:- Chemical messages and actions of sympathetic nerves cause the release of key hormones- Hormones trigger physiological changes:-Heart rate accelerates-Perspiration increases-Brain releases endorphins (endorphins increase happiness, and gives you a sense of euphoria)- “fight or flight” responses. -Homeostasis- State of eternal response (look at figure 2.1 in book)Emotional and Behavioral Responses to Stressors- Responses:-Vary from person to person-Perception and reactions very-Not all stress is negative- Effective responses to stress:-Talking, laughing, exercise, and improved time management- Ineffective responses:-Overreacting, hostility, procrastination, and frustration.These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a
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