Unformatted text preview: Stress and Health
Lifetime Fitness Lecture 2 Stress What is the effect of stress on a healthy lifestyle? Stress is the result of a stimulus or stressor Linked to disease Declines in daily performance and completion of daily tasks If poorly managed = reduction in quality of life Disruption of internal balance or body equilibrium Stress can be beneficial and is necessary for growth and development If prolonged may become harmful Stressors May be physical, social, and/or psychological (may be both positive and negative) Eustress = stress that is beneficial Distress = detrimental response or negative stressor Fine line between good and bad stress The Physiological Response to Stress Three stage response
Alarm Resistance Exhaustion Nervous & endocrine systems regulate systems of the body relative to stress Nervous system response is shortlived Endocrine system response is long lasting due to hormone involvement Alarm stage Fight or flight response occurs Increased heart rate, blood pressure, respiration rate Caused primarily by the nervous system in preparation of vigorous activity Resistance stage Body adjusts to stress Exhaustion stage Results if stress is persistent May result in illness and/or death Exercise and Stress Reduction
Physical activity is often used to reduce stress A "high" is often achieved through exercise both during and immediately following Consistent exercise also results in lowering resting blood pressure and cholesterol Personality and Stress Personality traits were once linked to cardiovascular disease Type A person Type B person Never satisfied with levels of achievement Appears tense, competitive and impatient Suffers from sense of time urgency Easy going and relaxed More patient Now evidence shows it is more related to an individual's ability to cope with anger and hostility MuscletoMind Techniques Progressive relaxation Systematic process of muscle tensing and relaxing Involves relaxation of all muscles of the body (resulting in negative exertion) Massage Useful as stressreducing technique Biofeedback Teaches concentration, relaxation, awareness, and selfcontrol By using a machine, individual is able to monitor changes in tension and ways of reducing it MindtoMuscle Techniques Yoga Involves breathing techniques used to alleviate stress and lower blood pressure & heart rate Mindfocusing exercises used to control one's attention Meditation Imagery Autogenic Training (Hypnosis) What is Cancer? Second leading cause of death in adults Linked to cellular behavior Cellular activity becomes abnormal Cell division of the abnormal cell results in formation of additional abnormal (cancer) cells Collection of cells (tumor) will spread and invade other tissues Effects of Diet on Cancer Diet changes Eating a healthy diet has the potential to reduce risk of cancer American Cancer Society recommendations Reduce total fat intake Eat food high in fiber Eat foods rich in vitamins A and C Include vegetables in your diet Avoid smoke, saltcured, and charred foods Effects of Exercise on Cancer Exercise has been associated with reducing certain types of cancer Enhances certain enzymes that reduce free radicals formation Free radicals enhance risk of chronic illnesses http://www.unc.edu/depts/exercise/exss_videos/in ...
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This note was uploaded on 03/20/2008 for the course LFIT 160 taught by Professor Meissen during the Spring '08 term at UNC.
- Spring '08