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Encyclopedia > Weight loss
Name of Symptom/Sign:
Weight loss
Classifications and external resources
ICD-10 R63.4 Abnormal weight loss
R64. Cachexia
ICD-9 783.21
DiseasesDB 28440
MeSH D015431

Weight loss, in the context of medicine or health or physical fitness, is a reduction of the total body weight, due to a mean loss of fluid, body fat or adipose tissue and/or lean mass, namely bone mineral deposits, muscle, tendon and other connective tissue. The term symptom (from the Greek meaning chance, mishap or casualty, itself derived from συμπιπτω meaning to fall upon or to happen to) has two similar meanings in the context of physical and mental health: Strictly, a symptom is a sensation or change in health function experienced by a patient. ... In medicine, a sign is a feature of disease as detected by the doctor during physical examination of a patient. ... The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or disease. ... The International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10) is a coding of diseases and signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or diseases, as classified by the World Health Organization (WHO). ... // R00-R99 - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R09) Symptoms and signs involving the circulatory and respiratory systems (R00) Abnormalities of heart beat (R000) Tachycardia, unspecified (R001) Bradycardia, unspecified (R002) Palpitations (R008) Other and unspecified abnormalities of heart beat (R01) Cardiac murmurs and other... // R00-R99 - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R09) Symptoms and signs involving the circulatory and respiratory systems (R00) Abnormalities of heart beat (R000) Tachycardia, unspecified (R001) Bradycardia, unspecified (R002) Palpitations (R008) Other and unspecified abnormalities of heart beat (R01) Cardiac murmurs and other... The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or disease. ... The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. ... The Disease Bold textDatabase is a free website that provides information about the relationships between medical conditions, symptoms, and medications. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Medicine is the science and art of maintaining andor restoring human health through the study, diagnosis, and treatment of patients. ... This article does not cite any references or sources. ... It has been suggested that this article or section be merged with human weight. ... It has been suggested that Subcutaneous fat be merged into this article or section. ...

Contents

Unintentional weight loss

A significant loss of total body weight is a serious, chronic illness. Substantial, unintentional weight loss is a symptom of acute or chronic illness, especially if other evidence is present. Look up chronic in Wiktionary, the free dictionary. ... The term symptom (from the Greek meaning chance, mishap or casualty, itself derived from συμπιπτω meaning to fall upon or to happen to) has two similar meanings in the context of physical and mental health: Strictly, a symptom is a sensation or change in health function experienced by a patient. ...


Weight loss, for example, accompanied by insatiable thirst and hunger and fatigue may indicate diabetes mellitus, a chronic disease characterized by an abnormal accumulation of carbohydrates in the bloodstream due to insufficient production of insulin, a hormone produced in the pancreas that, when secreted into the bloodstream, permits cellular metabolism and utilization of glucose. For the disease characterized by excretion of large amounts of very dilute urine, see diabetes insipidus. ... Carbohydrates (literally hydrates of carbon) are chemical compounds that act as the primary biological means of storing or consuming energy, other forms being fat and protein. ... Insulin (from Latin insula, island, as it is produced in the Islets of Langerhans in the pancreas) is an anabolic polypeptide hormone that regulates carbohydrate metabolism. ... Glucose (Glc), a monosaccharide (or simple sugar), is an important carbohydrate in biology. ...


Poor management of insulin-dependent diabetes mellitus (IDDM), also known as diabetes mellitus type I, leads to an excessive amount of glucose and an insufficient amount of insulin in the bloodstream. This triggers the release of triglycerides from adipose tissue and catabolism of amino acids in muscle tissue. This results in a loss of both fat and lean mass, predisposing a significant reduction in total body weight. Triglyceride (blue: fatty acid; red: glycerol backbone) Triglycerides are glycerides in which the glycerol is esterified with three fatty acids. ... Anabolism is the aspect of metabolism that contributes to growth. ... In chemistry, an amino acid is any molecule that contains both amino and carboxylic acid functional groups. ...


A myriad of additional scientific considerations are applicable to weight loss, including but not limited to physiological and exercise sciences, nutrition science, behavioral sciences, and other sciences. The updated USDA food pyramid, published in 2005, is a general nutrition guide for recommended food consumption for humans. ... Behavioural sciences (or Behavioral science) is a term that encompasses all the disciplines that explores the behaviour and strategies within and between organisms in the natural world. ...


One area involves the science of bioenergetics including biochemical and physiological energy production and utilization systems, that is frequently evidence of diabetes, and ketone bodies, acetone particles occurring in body fluids and tissues involved in acidosis, also known as ketosis, somewhat common in severe diabetes. Bioenergetics, loosely defined, is the study of energy investment and flow through living systems. ... Physiology (in Greek physis = nature and logos = word) is the study of the mechanical, physical, and biochemical functions of living organisms. ... Ketone bodies are three chemicals that are produced as by-products when fatty acids are broken down for energy. ... Acidosis is an increased acidity (i. ... Ketosis (IPA pronunciation: ) is a stage in metabolism occurring when the liver converts fat into fatty acids and ketone bodies which can be used by the body for energy. ...


In addition to weight loss due to a reduction in fat and lean mass, illnesses such as diabetes, certain medications, lack of fluid intake and other factors can trigger fluid loss. And fluid loss in addition to a reduction in fat and lean mass exacerbates the risk for cachexia.


Infections such as HIV may alter metabolism, leading to weight loss.[1] Species Human immunodeficiency virus 1 Human immunodeficiency virus 2 Human immunodeficiency virus (HIV) is a retrovirus that causes acquired immunodeficiency syndrome (AIDS, a condition in humans in which the immune system begins to fail, leading to life-threatening opportunistic infections). ...


Hormonal disruptions, such as an overactive thyroid (hyperthyroidism) , may also exhibit as weight loss.[2] Hyperthyroidism (or overactive thyroid gland) is the clinical syndrome caused by an excess of circulating free thyroxine (T4) or free triiodothyronine (T3), or both. ...


Intentional weight loss

Weight loss may refer to the loss of total body mass in an effort to improve fitness, health, or appearance.


Therapeutic weight loss, in individuals who are overweight, can decrease the likelihood of developing diseases such as diabetes [3]. Overweight and obese individuals face a greater risk of health conditions such as type 2 diabetes, heart disease, high blood pressure, and osteoarthritis [4]. For healthy weight loss, a physician should be consulted to develop a weight loss plan that is tailored to the individual. This article is about the disease that features high blood sugar. ... This article is about the medical term. ... Obesity is an excess storage of fat and can affect any mammal, such as the mouse on the left. ... Heart disease is an umbrella term for a number of different diseases which affect the heart and as of 2007 it is the leading cause of death in the United States. ... Osteoarthritis / Osteoarthrosis (OA, also known as degenerative arthritis, degenerative joint disease, arthrosis or in more colloquial terms wear and tear), is a condition in which low-grade inflammation results in pain in the joints, caused by wearing of the cartilage that covers and acts as a cushion inside joints. ...


Weight loss occurs when an individual is in a state of negative energy balance. When the human body is spending more energy in work and heat than it is gaining from food or other nutritional supplements, it will catabolise stored reserves of fat or muscle. In physics, mechanical work is the amount of energy transferred by a force. ... For other uses, see Heat (disambiguation) In physics, heat, symbolized by Q, is energy transferred from one body or system to another due to a difference in temperature. ...


It is not uncommon for people who are already at a medically healthy weight to intentionally lose weight. In some cases it is with the goal of improving athletic performance or to meet weight classifications in a sport. In other cases, the goal is to attain a more attractively shaped body. Being underweight is associated with health risks. Health problems can include fighting off infection, osteoporosis, decreased muscle strength, trouble regulating body temperature and even increased risk of death.[5] The term underweight refers to a human who is considered to be under a healthy weight. ...


Therapeutic weight loss techniques

Main article: Bariatrics

The least intrusive weight loss methods, and those most often recommended by physicians, are adjustments to eating patterns and increased physical exercise. Usually, health professionals will recommend that their overweight patients combine a reduction of the caloric content of the diet with an increase in physical activity.[6] Bariatrics is the branch of medicine that deals with the causes, prevention, and treatment of obesity. ... The term Exercise can refer to: Physical exercise such as running or strength training Exercise (options), the financial term for enacting and terminating a contract Category: ... A calorie is a unit of measurement for energy. ...


Other methods of losing weight include use of drugs and supplements that decrease appetite, block fat absorption, or reduce stomach volume. Surgery is another method. Bariatric surgery artificially reduces the size of the stomach, limiting the intake of food energy. Some of these treatments may have serious side-effects. This article does not cite any references or sources. ... A dietary supplement is intended to supply nutrients, (vitamins, minerals, fatty acids or amino acids) that are missing or not consumed in sufficient quantity in a persons diet. ... The appetite is the desire to eat food, felt as hunger. ... For other uses, see FAT. Fats consist of a wide group of compounds that are generally soluble in organic solvents and largely insoluble in water. ... “Surgeon” redirects here. ... Food energy is the amount of energy in food that is available through digestion. ... Adverse effect, in medicine, is an abnormal, harmful, undesired and/or unintended side-effect, although not necessarily unexpected, which is obtained as the result of a therapy or other medical intervention, such as drug/chemotherapy, physical therapy, surgery, medical procedure, use of a medical device, etc. ...


Weight loss industry

There is a huge market for products which promise to make weight loss easier, quicker, cheaper, more reliable, or less painful. These include books, CDs, cremes, lotions, pills, rings and earrings, body wraps, body belts and other materials, fitness centers, personal coaches, weight loss groups and food products and supplements. US residents in 1992 spent an estimated $30 billion a year on all types of diet programs and products, including diet foods and drinks.[7]


See also

Measuring body weight on a scale Dieting is the practice of ingesting food in a regulated fashion to achieve a particular objective. ... A sauna belt is one in a series of products advertising weight loss and therapeutic treatment through heat/ body heat and/or vibrations. ...

References

  1. ^ Mangili A, Murman DH, Zampini AM, Wanke CA (2006). "Nutrition and HIV infection: review of weight loss and wasting in the era of highly active antiretroviral therapy from the nutrition for healthy living cohort". Clin. Infect. Dis. 42 (6): 836-42. DOI:10.1086/500398. PMID 16477562. 
  2. ^ Overactive thyroid and weight loss
  3. ^ Diabetes Study Shows Value In Diet, Exercise, september 2001
  4. ^ Prevalence of various medical conditions increases with overweight and obesity
  5. ^ Mayo Clinic: Being Underweight Poses Health Risks. Retrieved January 13,2007
  6. ^ Choosing a Safe and Successful Weight Loss Program
  7. ^ US Food and Drug Administration: The Facts About Weight Loss Products and Programs

A digital object identifier (or DOI) is a standard for persistently identifying a piece of intellectual property on a digital network and associating it with related data, the metadata, in a structured extensible way. ...

External links


  Results from FactBites:
 
Weight Loss and Diet Pills for Sale (499 words)
The Weight Loss Institute was set-up to assist those people who wish to lose weight by providing them with research and advice as well as a range of diets and diet pills.
Almost every day customers ask us: "Which weight loss programs are the most effective for long-term weight loss?" We have reviewed and tested several of the most popular weight loss programs and diets, and we offer a comparison that point out the benefits and drawbacks of the different types weight loss programs.
The success of any weight loss program will vary greatly between different individuals but we hope that our overview will give you some ideas as to what might work for you.
Weight Loss Products and Programs (1300 words)
When investigating weight loss products or programs, beware of high costs, pressure to buy special foods or pills, and fraudulent claims.
Even if you choose to use an over-the-counter weight loss product or participate in a weight loss program, the bottom line is that you still must eat fewer calories than you burn to lose weight.
Suggested rate of weight loss is too high (2 1/2 to 7 1/2 pounds/week).
  More results at FactBites »

 
 

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