Chapter 16 - CHAPTER 16 the story of Leif freelance...

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CHAPTER 16 the story of Leif, freelance interior designer who suicide of drug and alcohol overdose theme of chapter is particular behaviors that make up an individual’s lifestyle have important consequences for that person’s quality of life CULTURAL EVOLUTION: LIFESTYLE CHOICES AND CONSEQUENCES cultural evolution – is a cultures adaptive change to recurrent environmental pressures o cultural evolution is driven mainly by psychological forces o it’s a product of human intellect and physical capacity, both of which has strong genetic component o cultural evolution has been the primary agent involved in shaping lifestyle – the aggregate behavior of a person, or the way a person leads his/her life o cultural evolution has resulted in a much higher standard of living than that of our prehistoric ancestor BUT it has also produced threats to our health and safety Example : manufactured food BUT if contaminated can cause disease o Why do some of us maintain unhealthy lifestyles if doing so diminish our physical and psychological wellbeing? Natural selection works operates on traits that affect the ability to reproduce BUT many of the consequences on unhealthy lifestyles do not appear until people are well beyond reproductive age Thus, it may be that genes that promote many unhealthy lifestyle functionally are overlooked by biological evolution o Law of effect also plays a large role in cultural evolution – law of effect states that behavior that produce favorable consequences tend to be repeated and those that produce unfavorable consequence tend not to be repeated o many unhealthy behaviors have reinforcing consequences in the short run and damaging consequences in the long run Example : “enjoy now, suffer later” HEALTHY AND UNHEALTHY LIFESTYLES Healthy lifestyle – one that enhances an individual’s wellbeing – both physical and psychological Unhealthy lifestyle – one that diminishes physical and psychological well-being NUTRITION Coronary heart disease (CHD) – the narrowing of blood vessels that supply nutrients to the heart
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o diets high in saturated fats and low in fibers are linked to CHD o main culprit in CHD is serum cholesterol – a chemical that occurs naturally in the bloodstream, where it serves as detoxifier Cancer – malignant and intrusive tumor that destroys body organs and tissue heart disease and strokes are the leading cause of death in developed countries Cholesterol is also a source of lipid membrane of cells and steroid hormones Cholesterol has 2 major forms : 1. HDL (high density lipoprotein) o Sometimes called the ‘good’ cholesterol o It is inversely associated with CHD 2. LDL (low-density lipoprotein) o Sometimes called the ‘bad’ cholesterol o It causes formation of atherosclerotic plaques that clogs arteries Cultures that have high deal rate due to breast cancer are those whose citizen consume large amount of fats
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  • Winter '09
  • Joordens
  • Stress, cultural evolution, CHD

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