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Fundementally different from "Chubby", the adjective "Fat" refers to a health condition in which the number of fat cells within the body exceeds the body's natural carrying capacity for lipids. A fat body will exibit signs of overbearence of weight; such as the formation of rolls and cellulite, as well as a host of other adverse phisiological symptoms. Contrastingly, "chubby" is a body type describing a body that has a naturally high carrying capacity for fat cells, and is unrelated to the aforementioned health condition. However, a chubby body can also become fat if the number of fat cells in the body surpasses the body's natural carrying capacity. As such; a person may be fat, chubby, both, or neither.
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