psyc 14 - LECTURE 14 Obesity contd Environmental Factors...

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LECTURE 14 – 2/26/09 Obesity cont’d Environmental Factors cont’d Socioeconomic status o TREND: lower SES leads to Higher obesity Possible reasons?   working multiple jobs = no time to worry  about eating healthy Health care issues, fast food issues o In developing countries, usually high SES people are heavier Sign of wealth, fertility, power o Obesity in the developing world can no longer be considered solely a  disease of groups of higher SES o The burden of obesity in a particular developing country tends to shift  towards the groups of lower SES as that country's GNP increases o The shift of obesity towards the poor apparently occurs at earlier stages  of the economic development among women than among men, and for  women, inequities in health determined by obesity are expected once  GNP per capita reaches about US$ 2500 — the mid-point value for lower- middle-income economies Message: in the lowest income countries, there is still less risk of  obesity in the poorer classes But the middle class countries   there is a greater risk in  the lower levels    sort of following the US trends from the  graphs below o Graphs – SES = education Women overall = higher levels of obesity
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As time progressed, people w/higher SES are starting to get  heavier SES is an important risk factor, but probably less of a risk than it  was 30 years ago Children o Noticeable INC in overweight prevalence Television o Promoting a sedentary lifestyle o Also advertising junky food Diet Exercise Energy intake > Energy expenditure  (leads to weight gain) INC energy intake    Fat o Fat INC energy intake Passive over-consumption Signals may not reflect actual nutrient content Maybe just sensory signals IE: krispy Kreme donut o
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