HUMAN MOTIVATIONNormal weight has been defined by the World wellness Organization (WHO ) as having a body mass powerfulness (BMI ) of 18 .5 to 24 .9 kg /m2 (Deurenberg and Yap , 1999 Weisell , 2002 . BMI is the ratio of an man-to-man s weight in kilograms (kg ) to his heights in meters squared (m2 . An private with a BMI of 25 to 29 kg /m2 is classified as adiposis , those with BMI gr dischargeer than or equal to 30 kg /m2 are categorized as moderately corpulent and tribe with BMI of 40 kg /m2 and above are identified as morbidly orotund . Obesity was preceding considered as an unbalance between energy intake and energy expenditure . like a shot , fleshiness is regarded as a complaint that is strongly influenced by genetic , physiologic and behavioral agents (Jequier and Tappy , 1999 . The global estimate of overweight people is currently 1 .2 billion , of which at to the lowest degree 300 million are classified as obese . Obesity has been identified as a preventable health risk , but unfortunately , the mortality rate of this disease is still high , contributing to approximately 300 ,000 d depletehs from each one year in the United States alone . Since the cases of overweight and obesity are continually increasing without any preference to sparing status of a country , health governing bodies consent put in a significant effort to boost awareness of this disease and intervention programs that would teach the public of the risks of be overweight and /or obese . A major factor that influences such excessive weight unclutter is the poor life style choices individuals make , in terms of their feeding , exercising and somatic activitiesSeveral theories have been proposed to explain the mechanism behind starve and eating in overweight and obese individuals . The internal-external theory of Schachter (1971 ) states that hunger is influenced by external signals such as time , as shown in their experiments involving manipulation of clock rates and counting the consumption of nuts by the subjects .
The research showed that faster ticking clocks that would pass away meal times earlier would influence the subjects to eat earlier , while slower ticking close would influence subjects to eat later during the day . This theory strengthened the hypothesis that obese people tend to feel hungry based on the time of the day , and not based of the real paladin of hunger . The sensation of hungry in normal individuals is broadly speaking induced by internal signals such as an change magnitude appetite or need to eatThe boundary theory of hunger considers the cognitive influence of hunger and satiety , wherein an individual determines the number of pabulum he should take in , as their typeset or boundary (Hermand and Polivy 1984 . During diet regimes , the amount of food an individuals eat is a little less than the set amount or boundary and in turn , the body physiologically adapts to the in stock(predicate) sources of energy . In overweight and obese individuals , the boundary of food intake is significantly higher than an individual of normal weightA thirdly theory explaining the relation between excessive weight gain and eating is the...If you want to get a full essay, stray it on our website:
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