Asthenia (Greek: ασθένεια, lit. lack of strength but also disease) is a medical term denoting a feeling of weakness without actual loss of strength. 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). ... 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. ... Weakness is the inability to exert force with ones muscles to the degree that would be expected given the individuals general physical condition. ... See also Muscle Atrophy Muscle weakness (or lack of strength) is a direct term for It is the inability to exert force with ones muscles to the degree that would be expected given the individuals general physical fitness. ...

Causes of asthenia

The condition is commonly seen in patients suffering from chronic fatigue syndrome, sleep disorders or chronic disorders of the heart, lungs or kidneys. Differentiating between asthenia and true muscular weakness is often difficult, and in time asthenia in chronic disorders is seen to progress into a primary weakness. Also a condition in which the body lacks or has lost strength either as a whole or in any of its parts. General asthenia occurs in many chronic wasting diseases, such as anemia and cancer, and is probably most marked in diseases of the adrenal gland. Asthenia may be limited to certain organs or systems of organs, as in asthenopia, characterized by ready fatiguability. Asthenia is also a side effect of Ritonavir(Protease Inhibitor used in HIV treatment) See also Muscle Atrophy Muscle weakness (or lack of strength) is a direct term for It is the inability to exert force with ones muscles to the degree that would be expected given the individuals general physical fitness. ... An organ is the following: In anatomy, an organ is a group of tissues which perform some function. ... ...

Common causes of asthenia

• Addison's disease
• Anemia
• Anxiety
• Chemotherapy
• Chronic fatigue syndrome
• Chronic pain
• Deconditioning/sedentary lifestyle
• Dehydration and electrolyte disturbance
• Depression
• Diabetes
• Fibromyalgia
• Heart disease
• Hypothyroidism
• Infections
• Medications including amiodarone and Anastrazole
• Narcotics
• Paraneoplastic syndrome
• Pregnancy/postpartum
• Pulmonary disease
• Renal disease
• Sleep disorders

Addisons disease(also known as chronic adrenal insufficiency, hypocortisolism or hypocorticism) is a rare endocrine disorder in which the adrenal gland produces insufficient amounts of steroid hormones (glucocorticoids and often mineralocorticoids). ... This article discusses the medical condition. ... Anxiety is a physiological state characterized by cognitive, somatic, emotional, and behavioral components (Seligman, Walker & Rosenhan, 2001). ... Chemotherapy is the use of chemical substances to treat disease. ... Chronic fatigue syndrome (CFS) is one of several names given to a poorly understood, highly debilitating disorder of uncertain cause/causes, which is thought to affect approximately 4 per 1,000 adults[1] in the United States and other countries, and a smaller fraction of children. ... Chronic pain was originally defined as pain that has lasted 6 months or longer. ... Dehydration (hypohydration) is the removal of water (hydro in ancient Greek) from an object. ... Electrolyte disturbance refers to an abnormal change in the levels of electrolytes in the body. ... On the Threshold of Eternity. ... This article is about the disease that features high blood sugar. ... Fibromyalgia (FM or FMS) is a chronic syndrome (constellation of signs and symptoms) characterized by diffuse or specific muscle, joint, or bone pain, fatigue, and a wide range of other symptoms. ... 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,[1] and England and Wales. ... This article or section does not cite its references or sources. ... Infection is also the title of an episode of the television series Babylon 5; see Infection (Babylon 5). ... A medication is a drug or substance taken to reduce symptoms or cure an illness or medical condition. ... The term narcotic, derived from the Greek word for stupor, originally referred to a variety of substances that induced sleep (such state is narcosis). ... A paraneoplastic phenomenon is a disease or symptom that is the consequence of the presence of cancer in the body, but is not due to the local presence of cancer cells. ... This article is about human pregnancy in biological females. ... Postnatal (Latin for after birth) is the period beginning immediately after the birth of a child and extending for about six weeks. ... Diseases of the mammalian respiratory system are classified under one of two broad categories: physiologic, where disease states are characterised by alterations in physiology, or anatomical, where disease states are defined by the anatomical location/level affected, or by the layers of the respiratory system affected by disease. ... Kidneys viewed from behind with spine removed The kidneys are bean-shaped excretory organs in vertebrates. ...

See also

• Neurasthenia
• Myasthenia gravis
• Blink-182 (album) (has a song called "Asthenia", about an astronaut in a space capsule contemplating whether his return to earth will even make a difference)

Neurasthenia was a term first coined by George Miller Beard in 1869 to describe a condition with symptoms of fatigue, anxiety and pessimism. ... Myasthenia gravis (sometimes abbreviated MG; from the Greek myastheneia, lit. ... Singles from Blink-182 Released: November 10, 2003 Released: February 21, 2004 Released: June 21, 2004 Released: December 13, 2004 Blink-182 is a self titled[1] or untitled[2] album, by the band of the same name and their last full-length record before an ongoing hiatus. ...

References

• Adapted from: Hinshaw DB, Carnahan JM, Johnson DL. Depression, anxiety, and asthenia in advanced illness. J Am Coll Surg 2002;195:276.