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INFO: Full form for AME is Apparent Mineralocorticoid Excess in Medical category
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INFO: Full form for AME is arcuate nucleus-median eminence in Medical category
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INFO: Full form for AME is aseptic meningoencephalitis in Medical category
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INFO: Full form for AME is Agreed Medical Evaluator in Medical category
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INFO: Full form for RTC is Return to clinic in Medical category
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A residential treatment center (RTC), sometimes called a rehab, is a live-in health care facility providing therapy for substance use disorders, mental illness, or other behavioral problems. Residential treatment may be considered the "last-ditch" approach to treating abnormal psychology or psychopathology.

INFO: Full form for AME is Academy of Medical Educators in Medical category
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INFO: Full form for LOE is Level Of Evidence in Medical category
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INFO: Full form for HMM is Heavy MeroMyosin in Medical category
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The gastrointestinal tract (GI tract, GIT, digestive tract, digestion tract, alimentary canal) is the tract from the mouth to the anus which includes all the organs of the digestive system in humans and other animals. Food taken in through the mouth is digested to extract nutrients and absorb energy, and the waste expelled as feces. The mouth, esophagus, stomach and intestines are all part of the gastrointestinal tract. Gastrointestinal is an adjective meaning of or pertaining to the stomach and intestines. A tract is a collection of related anatomic structures or a series of connected body organs.

All vertebrates and most invertebrates have a digestive tract. The sponges, cnidarians, and ctenophores are the early invertebrates with an incomplete digestive tract having just one opening instead of two, where food is taken in and waste expelled.

The human gastrointestinal tract consists of the esophagus, stomach, and intestines, and is divided into the upper and lower gastrointestinal tracts. The GI tract includes all structures between the mouth and the anus, forming a continuous passageway that includes the main organs of digestion, namely, the stomach, small intestine, and large intestine. However, the complete human digestive system is made up of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver and gallbladder). The tract may also be divided into foregut, midgut, and hindgut, reflecting the embryological origin of each segment. The whole human GI tract is about nine metres (30 feet) long at autopsy. It is considerably shorter in the living body because the intestines, which are tubes of smooth muscle tissue, maintain constant muscle tone in a halfway-tense state but can relax in spots to allow for local distention and peristalsis.

The gastrointestinal tract contains trillions of microbes, with some 4,000 different strains of bacteria having diverse roles in maintenance of immune health and metabolism. Some estimates claim that the number of microbes outnumber our own cells 10:1. Cells of the GI tract release hormones to help regulate the digestive process. These digestive hormones, including gastrin, secretin, cholecystokinin, and ghrelin, are mediated through either intracrine or autocrine mechanisms, indicating that the cells releasing these hormones are conserved structures throughout evolution.

The glycemic index (GI; ) is a number from 0 to 100 assigned to a food, with pure glucose arbitrarily given the value of 100, which represents the relative rise in the blood glucose level two hours after consuming that food. The GI of a specific food depends primarily on the quantity and type of carbohydrate it contains, but is also affected by the amount of entrapment of the carbohydrate molecules within the food, the fat and protein content of the food, the amount of organic acids (or their salts) in the food, and whether it is cooked and, if so, how it is cooked. GI tables, which list many types of foods and their GIs, are available. A food is considered to have a low GI if it is 55 or less; high GI if 70 or more; and mid-range GI if 56 to 69.

The term was introduced in 1981 by David J. Jenkins and co-workers. It is useful for quantifying the relative rapidity with which the body breaks down carbohydrates. It takes into account only the available carbohydrate (total carbohydrate minus fiber) in a food. Glycemic index does not predict an individual's glycemic response to a food, but can be used as a tool to assess the insulin response burden of a food, averaged across a studied population. Individual responses vary greatly.

The glycemic index is usually applied in the context of the quantity of the food and the amount of carbohydrate in the food that is actually consumed. A related measure, the glycemic load (GL), factors this in by multiplying the glycemic index of the food in question by the carbohydrate content of the actual serving.

A practical limitation of the glycemic index is that it does not measure insulin production due to rises in blood sugar. As a result, two foods could have the same glycemic index, but produce different amounts of insulin. Likewise, two foods could have the same glycemic load, but cause different insulin responses. Furthermore, both the glycemic index and glycemic load measurements are defined by the carbohydrate content of food. For example, when eating steak, which has no carbohydrate content but provides a high protein intake, up to 50% of that protein can be converted to glucose when there is little to no carbohydrate consumed with it. But because it contains no carbohydrate itself, steak cannot have a glycemic index. For some food comparisons, the insulin index may be more useful.

INFO: Full form for GI is Geninfo Identifier in Medical category
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INFO: Full form for GI is Guided Imagery in Medical category
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INFO: Full form for GI is Germs Incognito in Medical category
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INFO: Full form for GI is GastroInestinal in Medical category
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INFO: Full form for TBH is The Brooklyn Hospital Center in Medical category
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INFO: Full form for TBH is Trumpet Behavioral Health in Medical category
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INFO: Full form for TBH is Traditions Behavioral Health in Medical category
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