0_Wizard
Chronic fatigue syndrom is diagnosed based on a person's symptoms.
Diagnosis is based on a person's symptoms.
chosen_Chronic_fatigue_syndrome_0
Chronic fatigue syndrome
chosen_topic_0_Chronic_fatigue_syndrome
Chronic fatigue syndrome
Chronic fatigue syndrome (CFS), also referred to as myalgic encephalomyelitis (ME), is a medical condition characterized by long-term fatigue and other symptoms that limit a person's ability to carry out ordinary daily activities. Biological, genetic, infectious, and psychological mechanisms have been proposed, but the cause is not understood. Diagnosis is based on a person's symptoms. The fatigue is not due to strenuous ongoing exertion, is not much relieved by rest, and is not due to a previous medical condition. Fatigue is a common symptom in many illnesses, but the unexplained fatigue and severity of functional impairment in CFS is comparatively rare.
History of chronic fatigue syndrome
The history of chronic fatigue syndrome (CFS, also known by many other names) is thought to date back to the 19th century and before. Several descriptions of illness resembling those of chronic fatigue syndrome have been reported for at least two hundred years. In the 19th century, neurologist George Miller Beard popularised the concept of neurasthenia, with symptoms including fatigue, anxiety, headache, impotence, neuralgia and depression. This concept remained popular well into the 20th century, eventually coming to be seen as a behavioural rather than physical condition, with a diagnosis that excluded postviral syndromes.
Clinical descriptions of chronic fatigue syndrome
The clinical descriptions of chronic fatigue syndrome (CFS) vary. Different agencies and scientific bodies have produced different guidelines to define the condition, with some overlap of symptoms between descriptions. Aspects of the condition are controversial, with disagreements over etiology, pathophysiology, treatment and naming between medical practitioners, researchers, patients and advocacy groups. Subgroup analysis suggests that, depending on the applied definition, the CFS population may represent a variety of conditions rather than a single disease entity. The most widely used diagnostic criteria for CFS are the 1994 research guidelines proposed by the "International Chronic Fatigue Syndrome Study Group", led by the Centers for Disease Control and Prevention.
Chronic fatigue syndrome treatment
Treatment of chronic fatigue syndrome (CFS) is variable and uncertain, and the condition is primarily managed rather than cured. Only two treatments, cognitive behavioral therapy and graded exercise therapy, have demonstrated reproducible evidence for their efficacy people with CFS who are walking. There are no Food and Drug Administration (FDA) approved medications for ME/CFS treatment, although medications are used without approval for the illness (off-label). Drugs have been used in experimental studies of the illness that haven't been approved for market for any condition in the United States (for example, isoprinosine and rintatolimod).
Fibromyalgia
Fibromyalgia (FM) is a medical condition characterised by chronic widespread pain and a heightened pain response to pressure. Other symptoms include tiredness to a degree that normal activities are affected, sleep problems, and troubles with memory. Some people also report restless legs syndrome, bowel or bladder problems, numbness and tingling, and sensitivity to noise, lights or temperature. Fibromyalgia is frequently associated with depression, anxiety, and posttraumatic stress disorder. Other types of chronic pain are also frequently present. The cause of fibromyalgia is unknown; however, it is believed to involve a combination of genetic and environmental factors with half the risk attributed to each.
Irritable bowel syndrome
Irritable bowel syndrome (IBS) is a group of symptoms—including abdominal pain and changes in the pattern of bowel movements without any evidence of underlying damage. These symptoms occur over a long time, often years. It has been classified into four main types depending on whether diarrhea is common, constipation is common, both are common, or neither occurs very often (IBS-D, IBS-C, IBS-M, or IBS-U respectively). IBS negatively affects quality of life and may result in missed school or work. Disorders such as anxiety, major depression, and chronic fatigue syndrome are common among people with IBS.
Lyme disease
Lyme disease, also known as Lyme borreliosis, is an infectious disease caused by bacteria of the "Borrelia" type which is spread by ticks. The most common sign of infection is an expanding area of redness on the skin, known as erythema migrans, that begins at the site of a tick bite about a week after it has occurred. The rash is typically neither itchy nor painful. Approximately 25–50% of infected people do not develop a rash. Other early symptoms may include fever, headache and feeling tired. If untreated, symptoms may include loss of the ability to move one or both sides of the face, joint pains, severe headaches with neck stiffness, or heart palpitations, among others.
1_Apprentice
Do you have chronic fatigue syndrome? What are the symptoms? Sometimes I feel like I might have it.
0_Wizard
No I don't have it, but different agencies and scientific bodies produced different definitions
Different agencies and scientific bodies have produced different guidelines to define the condition, with some overlap of symptoms between descriptions.
self_Clinical_descriptions_of_chronic_fatigue_syndrome_1
Clinical descriptions of chronic fatigue syndrome
self_2_Clinical_descriptions_of_chronic_fatigue_syndrome
Clinical descriptions of chronic fatigue syndrome
The clinical descriptions of chronic fatigue syndrome (CFS) vary. Different agencies and scientific bodies have produced different guidelines to define the condition, with some overlap of symptoms between descriptions. Aspects of the condition are controversial, with disagreements over etiology, pathophysiology, treatment and naming between medical practitioners, researchers, patients and advocacy groups. Subgroup analysis suggests that, depending on the applied definition, the CFS population may represent a variety of conditions rather than a single disease entity. The most widely used diagnostic criteria for CFS are the 1994 research guidelines proposed by the "International Chronic Fatigue Syndrome Study Group", led by the Centers for Disease Control and Prevention.
History of science and technology in the People's Republic of China
For more than a century China's leaders have called for rapid development of science and technology, and science policy has played a greater role in national politics in China than in many other countries. China's scientific and technical achievements have been impressive in many fields. Although it has been a relatively low-income, developing country, China has by its own efforts managed to develop nuclear weapons, the ability to launch and recover satellites, supercomputers, and high-yield hybrid rice, among others. But the development of science and technology has been uneven, and significant achievements in some fields are matched by low levels in others.
Ceramic capacitor
A ceramic capacitor is a fixed-value capacitor in which ceramic material acts as the dielectric. It is constructed of two or more alternating layers of ceramic and a metal layer acting as the electrodes. The composition of the ceramic material defines the electrical behavior and therefore applications. Ceramic capacitors are divided into two application classes:  Ceramic capacitors, especially multilayer ceramic capacitors (MLCCs), are the most produced and used capacitors in electronic equipment that incorporate approximately one trillion (10) pieces per year. Ceramic capacitors of special shapes and styles are used as capacitors for RFI/EMI suppression, as feed-through capacitors and in larger dimensions as power capacitors for transmitters.
Environmental governance
Environmental governance is a concept in political ecology and environmental policy that advocates sustainability (sustainable development) as the supreme consideration for managing all human activities—political, social and economic. Governance includes government, business and civil society, and emphasizes whole system management. To capture this diverse range of elements, environmental governance often employs alternative systems of governance, for example watershed-based management. It views natural resources and the environment as global public goods, belonging to the category of goods that are not diminished when they are shared.
Intergovernmental Panel on Climate Change
The Intergovernmental Panel on Climate Change (IPCC) is a scientific and intergovernmental body under the auspices of the United Nations, set up at the request of member governments, dedicated to the task of providing the world with an objective, scientific view of climate change and its political and economic impacts. It was first established in 1988 by two United Nations organizations, the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP), and later endorsed by the United Nations General Assembly through Resolution 43/53. Membership of the IPCC is open to all members of the WMO and UNEP.
Scientific opinion on climate change
The scientific opinion on climate change is the overall judgment among scientists regarding the extent to which global warming is occurring, its likely causes, and its probable consequences. The scientific consensus is that the Earth's climate system is unequivocally warming, and that it is "extremely likely" (meaning 95% probability or higher) that this warming is predominantly caused by humans. In 2013, 12,000 peer reviewed papers on climate science were analyzed. This analysis showed that 97% of scientists believe that climate change is happening and is human-caused. It is likely that this mainly arises from increased concentrations of greenhouse gases in the atmosphere, primarily from the burning of fossil fuels, partially offset by human-caused and volcanic aerosols; natural change has had little effect.
Search and rescue
Search and rescue (SAR) is the search for and provision of aid to people who are in distress or imminent danger. The general field of search and rescue includes many specialty sub-fields, typically determined by the type of terrain the search is conducted over. These include mountain rescue; ground search and rescue, including the use of search and rescue dogs; urban search and rescue in cities; combat search and rescue on the battlefield and air-sea rescue over water. International Search and Rescue Advisory Group (INSARAG) is a UN organization that promotes the exchange of information between national urban search and rescue organizations.
1_Apprentice
So what kind of things are they saying defines chronic fatigue syndrome?
0_Wizard
There is a variety of conditions rather than a single disease 
Subgroup analysis suggests that, depending on the applied definition, the CFS population may represent a variety of conditions rather than a single disease entity.
self_Clinical_descriptions_of_chronic_fatigue_syndrome_3
Clinical descriptions of chronic fatigue syndrome
self_0_Clinical_descriptions_of_chronic_fatigue_syndrome
Clinical descriptions of chronic fatigue syndrome
The clinical descriptions of chronic fatigue syndrome (CFS) vary. Different agencies and scientific bodies have produced different guidelines to define the condition, with some overlap of symptoms between descriptions. Aspects of the condition are controversial, with disagreements over etiology, pathophysiology, treatment and naming between medical practitioners, researchers, patients and advocacy groups. Subgroup analysis suggests that, depending on the applied definition, the CFS population may represent a variety of conditions rather than a single disease entity. The most widely used diagnostic criteria for CFS are the 1994 research guidelines proposed by the "International Chronic Fatigue Syndrome Study Group", led by the Centers for Disease Control and Prevention.
Atypical hemolytic uremic syndrome
Atypical hemolytic uremic syndrome (aHUS) is an extremely rare, life-threatening, progressive disease that frequently has a genetic component. In most cases it is caused by chronic, uncontrolled activation of the complement system, a branch of the body’s immune system that destroys and removes foreign particles. The disease affects both children and adults and is characterized by systemic thrombotic microangiopathy (TMA), the formation of blood clots in small blood vessels throughout the body, which can lead to stroke, heart attack, kidney failure, and death. The complement system activation may be due to mutations in the complement regulatory proteins (factor H, factor I, or membrane cofactor protein), or is occasionally due to acquired neutralizing autoantibody inhibitors of these complement system components, for example anti–factor H antibodies.
Health care reforms proposed during the Obama administration
There were a number of different health care reforms proposed during the Obama administration. Key reforms address cost and coverage and include obesity, prevention and treatment of chronic conditions, defensive medicine or tort reform, incentives that reward more care instead of better care, redundant payment systems, tax policy, rationing, a shortage of doctors and nurses, intervention vs. hospice, fraud, and use of imaging technology, among others. The first of these reform proposals to be passed by the United States Congress is the Patient Protection and Affordable Care Act, which originated in the Senate and was later passed by the House of Representatives in amended form on March 21, 2010 (with a vote of 219–212).
Periodontal pathology
Periodontal pathology, also termed gum diseases or periodontal diseases, are diseases involving the periodontium (the tooth supporting structures, i.e. the gums). The periodontium is composed of alveolar bone, periodontal ligament, cementum and gingiva. An internationally agreed classification formulated at the World Workshop in Clinical Periodontics in 1989 divided periodontal diseases into 5 groups: adult periodontitis, early-onset periodontitis, periodontitis associated with systemic disease, necrotizing ulcerative peirodontitis and refactory periodontitis. In 1993 at the 1st European Workshop in Periodontology the earlier classification was simplified and the categories periodontitis associated with systemic disease and refractory periodontitis were dropped.
Tuberculosis
Tuberculosis (TB) is an infectious disease usually caused by the bacterium "Mycobacterium tuberculosis" (MTB). Tuberculosis generally affects the lungs, but can also affect other parts of the body. Most infections do not have symptoms, in which case it is known as latent tuberculosis. About 10% of latent infections progress to active disease which, if left untreated, kills about half of those infected. The classic symptoms of active TB are a chronic cough with blood-containing sputum, fever, night sweats, and weight loss. The historical term "consumption" came about due to the weight loss. Infection of other organs can cause a wide range of symptoms.
Healthcare reform debate in the United States
The healthcare reform debate in the United States has been a political issue focusing upon increasing medical coverage, decreasing costs, insurance reform, and the philosophy of its provision, funding, and government involvement. Following the election of Barack Obama as president, who campaigned heavily on accomplishing health care reform, the Patient Protection and Affordable Care Act (PPACA) was enacted in March 2010. However, in the next election of Donald Trump as president, he campaigned to repeal and replace Obamacare and came up with a seven-point plan for healthcare reform. With this seven point plan President Trump discussed that the healthcare system would work based on free market principles.
Melanoma
Melanoma, also known as malignant melanoma, is a type of cancer that develops from the pigment-containing cells known as melanocytes. Melanomas typically occur in the skin, but may rarely occur in the mouth, intestines, or eye. In women, they most commonly occur on the legs, while in men they are most common on the back. Sometimes they develop from a mole with concerning changes including an increase in size, irregular edges, change in color, itchiness, or skin breakdown. The primary cause of melanoma is ultraviolet light (UV) exposure in those with low levels of skin pigment. The UV light may be from either the sun or from other sources, such as tanning devices.
1_Apprentice
Such as? I am sleepy all the time despite sleeping more than 8 hours a day. SOmetimes I feel like too much sleep makes me tired too.
0_Wizard
Scientist say that the fatigue is not due to strenuous ongoing exertion, is not much relieved by rest, and is not due to a previous medical condition. 
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Chronic fatigue syndrome
Chronic fatigue syndrome (CFS), also referred to as myalgic encephalomyelitis (ME), is a medical condition characterized by long-term fatigue and other symptoms that limit a person's ability to carry out ordinary daily activities. Biological, genetic, infectious, and psychological mechanisms have been proposed, but the cause is not understood. Diagnosis is based on a person's symptoms. The fatigue is not due to strenuous ongoing exertion, is not much relieved by rest, and is not due to a previous medical condition. Fatigue is a common symptom in many illnesses, but the unexplained fatigue and severity of functional impairment in CFS is comparatively rare.
Exercise physiology
Exercise physiology is the physiology of physical exercise. It is the study of the acute responses and chronic adaptations to a wide range of exercise conditions. Exercise physiologists study the effect of exercise on pathology, and the mechanisms by which exercise can reduce or reverse disease progression. Humans have a high capacity to expend energy for many hours during sustained exertion. For example, one individual cycling at a speed of through over 50 consecutive days expended a total of 1,145 MJ (273,850 kcal; 273,850 dieter calories) with an average power output of 182.5 W.  Skeletal muscle burns 90 mg (0.5 mmol) of glucose each minute during continuous activity (such as when repetitively extending the human knee), generating ≈24 W of mechanical energy, and since muscle energy conversion is only 22–26% efficient, ≈76 W of heat energy.
Chronic fatigue syndrome treatment
Treatment of chronic fatigue syndrome (CFS) is variable and uncertain, and the condition is primarily managed rather than cured. Only two treatments, cognitive behavioral therapy and graded exercise therapy, have demonstrated reproducible evidence for their efficacy people with CFS who are walking. There are no Food and Drug Administration (FDA) approved medications for ME/CFS treatment, although medications are used without approval for the illness (off-label). Drugs have been used in experimental studies of the illness that haven't been approved for market for any condition in the United States (for example, isoprinosine and rintatolimod).
Cancer-related fatigue
Cancer-related fatigue is a subjective symptom of fatigue that is experienced by nearly all cancer patients. Among patients receiving cancer treatment other than surgery, it is essentially universal. Fatigue is a normal and expected side effect of most forms of chemotherapy, radiation therapy, and biotherapy. On average, cancer-related fatigue is "more severe, more distressing, and less likely to be relieved by rest" than fatigue experienced by healthy people. It can range from mild to severe, and may be either temporary or a long-term effect. Fatigue may be a symptom of the cancer, or it may be the result of treatments for the cancer.
Reduced muscle mass, strength and performance in space
There is a growing research database which suggests that skeletal muscles, particularly postural muscles of the lower limb, undergo atrophy and structural and metabolic alterations during space flight. However, the relationships between in-flight exercise, muscle changes and performance are not well understood. Efforts should be made to try to understand the current status of in-flight and post-flight exercise performance capacity and what the goals/target areas for protection are with the current in flight exercise program. From the very beginning of the U.S. human space program, serious and reasonable concern has been expressed about exposure of humans to the microgravity of space due to the potential systemic effects on terrestrially-evolved life forms that are so suitably adapted to Earth gravity.
Central governor
The central governor is a proposed process in the brain that regulates exercise in regard to a neurally calculated safe exertion by the body. In particular, physical activity is controlled so that its intensity cannot threaten the body’s homeostasis by causing anoxic damage to the heart muscle. The central governor limits exercise by reducing the neural recruitment of muscle fibers. This reduced recruitment causes the sensation of fatigue. The existence of a central governor was suggested to explain fatigue after prolonged strenuous exercise in long-distance running and other endurance sports, but its ideas could also apply to other causes of exertion-induced fatigue.
Fatigue (medical)
Fatigue is a subjective feeling of tiredness which is distinct from weakness, and has a gradual onset. Unlike weakness, fatigue can be alleviated by periods of rest. Fatigue can have physical or mental causes. Physical fatigue is the transient inability of a muscle to maintain optimal physical performance, and is made more severe by intense physical exercise. Mental fatigue is a transient decrease in maximal cognitive performance resulting from prolonged periods of cognitive activity. It can manifest as somnolence, lethargy, or directed attention fatigue. Medically, fatigue is a non-specific symptom, which means that it has many possible causes and accompanies many different conditions.
1_Apprentice
How can you treat it? Coffe??