Dieting complex carbohydrates and fats, for energy. The first source to which the body turns is glycogen (by glycogenolysis). Glycogen is a complex carbohydrate, 65% of which is stored in skeletal muscles and the remainder in the liver (totaling about 2,000 kcal in the whole body). It is created from the excess of ingested macronutrients, mainly carbohydrates. When glycogen is nearly depleted, the body begins lipolysis, the mobilization and catabolism of fat stores for energy. In this process, fats, obtained from adipose tissue, or fat cells, are broken down into glycerol and fatty acids, which can be used to generate energy.
Organ transplantation in fiction Organ transplantation in fiction Organ transplantation is a common theme in science fiction and horror fiction. Numerous horror movies feature the theme of transplanted body parts that are evil or give supernatural powers, with examples including "Body Parts", "Hands of a Stranger", and "The Eye". Organ transplants from donors who are unwilling, or incapable of objecting, to having their organs removed are a recurring theme in dystopian fiction. In contrast to unwilling organ donors, there is the theme of individuals who want to donate their own life-critical organs, such as a brain or heart, at the cost of their own