The growing epidemic of obesity raises concerns on how people need to lose the fat that is impeding their health. Lifestyle and diet books all discuss the idea that in order to lose weight, one must expend more calories than the calories put into the body through food. Many health and exercise programs mainly focus restricting caloric intake while increasing caloric expenditure by exercising. This idea might have sprung from the interpretation of the First Law of Thermodynamics. The First Law of Thermodynamics states that energy can neither be created nor destroyed-that is the change in energy is equal to the difference between the energy entering the system and the energy leaving the system. From this law, one could assume that the change in fat could be the result of the difference of calories entering the body and calories leaving the body through exercise.
A2.Validity of the Theory
This view based on the First Law of Thermodynamics however assumes that there is a direct causality between caloric intake and outtake and the accumulation of fat in the body. The problem with this view of fat and calories is the direction of causation. If one assumes that this idea of fat and calories is correct, then one must define which side of the equal sign is the direct cause of the other. Is this view saying that an increase in fat is due to the caloric intake being greater than the expenditure or is it saying that the more calories entering the body while expenditure is decreasing is due to the increase in fat? The problem with the First Law of Thermodynamics model of caloric intake is that it does not truly defines the relationship of causality between fat and calories intake and expenditure, and...
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...he poverty line while the Caucasian participants were middle class or upper class earners (statesofobesity.org). Another aspect of disparities was the education level of the participants. The minorities had less education on average, and this disparity is important to address because of a lack of knowledge of about obesity and foods creates the obesogenic environments that encourages the cycle of obesity. These disparities also are important to note because they create greater mortality rates and disease burden. By not having access to preventive care and knowledge, minorities and lower income earners are suffering the cardiovascular effects of obesity two times greater than Caucasians and Asians (Sen 11/18). By addressing the disparities and all the factors contributing to the cycle of obesity, there will be better methods of preventing and controlling the disease.
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