Question

Describe how the following factors influence obesity: genetic susceptibility, leptin resistance, and weight cycling.

Describe how the following factors influence obesity: genetic susceptibility, leptin resistance, and weight cycling.

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Answer #1

Describe how the following factors influence obesity: genetic susceptibility, leptin resistance, and weight cycling.

Obesity is influenced in the following manner:

  • Genetic susceptibility: in some cases, genes have been shown to be directly causing obesity. This has become more prominent in cases such as Barnet Biedl syndrome as well as the Prader Wili syndrome. Though, genes would not be always predicting future health. In order for a person to be overweight,there has to be both genes and behavior affecting him. Susceptibility to obesity is increased by more than one gene. Also with supplementation with external factors such as abundant food or less physical activity. For a person having family history, obesity is almost 8 times higher.
  • Leptin resistance: leptin levels may keep increasing as a person becomes fatter. Leptin resistance means that there would be high leptin and the brain gets starved as the body starts becoming obese. When a person is losing weight, there is a reduction in the levels of leptin at the time of weight loss, which would be signaling the brain to increase feed and decrease the expenditure of energy.
  • Weight cycling: weight cycling is when there is repeated gain of weight or loss of body weight. Weight cycling, as a result of dieting, is referred to as yo yo dieting. This is one of the common occurrences that take place in the obese populations.
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