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Polyphagia or hyperphagia is an abnormally strong, incessant sensation of hunger or desire to eat often leading to overeating. [1] In contrast to an increase in appetite following exercise, polyphagia does not subside after eating and often leads to rapid intake of excessive quantities of food.
The cause of death due to starvation is usually an infection or the result of tissue breakdown. This is due to the body becoming unable to produce enough energy to fight off bacteria and viruses. The final stage of starvation includes signals like hair color loss, skin flaking, swelling in the extremities, and a bloated belly.
Starvation response in animals (including humans) is a set of adaptive biochemical and physiological changes, triggered by lack of food or extreme weight loss, in which the body seeks to conserve energy by reducing metabolic rate and/or non-resting energy expenditure to prolong survival and preserve body fat and lean mass.
Gluttony (Latin: gula, derived from the Latin gluttire meaning "to gulp down or swallow") means over-indulgence and over-consumption of anything to the point of waste. In Christianity , it is considered a sin if the excessive desire for food leads to a lack of control over one's relation with food or harms the body. [ 1 ]
The causes listed are relatively immediate medical causes, but the ultimate cause of death might be described differently. For example, tobacco smoking often causes lung disease or cancer, and alcohol use disorder can cause liver failure or a motor vehicle accident.
A woman, man, and child, all dead from starvation during the Russian famine of 1921–1922. A famine is a widespread scarcity of food [1] [2] caused by several possible factors, including, but not limited to war, natural disasters, crop failure, widespread poverty, an economic catastrophe or government policies.
In the FAO definition, all hungry people suffer from malnutrition, but people who are malnourished may not be hungry. They may get sufficient raw calories to avoid hunger but lack essential micronutrients, or they may even consume an excess of raw calories and hence suffer from obesity. [7] [6] [5]
Brain death is sometimes used as a legal definition of death. [15] For all organisms with a brain, death can instead be focused on this organ. [16] [17] The cause of death is usually considered important, and an autopsy can be done. There are many causes, from accidents to diseases.