Anger: A strong emotional feeling of displeasure aroused by being interfered with, injured or threatened.Hostility: Tendency to feel anger toward and to seek to inflict harm upon a person or group.Expressed Emotion: Frequency and quality of negative emotions, e.g., anger or hostility, expressed by family members or significant others, that often lead to a high relapse rate, especially in schizophrenic patients. (APA, Thesaurus of Psychological Index Terms, 7th ed)Frustration: The motivational and/or affective state resulting from being blocked, thwarted, disappointed or defeated.Facial Expression: Observable changes of expression in the face in response to emotional stimuli.Acting Out: Expressing unconscious emotional conflicts or feelings, often of hostility or love, through overt behavior.Emotions: Those affective states which can be experienced and have arousing and motivational properties.Rage: Fury; violent, intense anger.Personality Inventory: Check list, usually to be filled out by a person about himself, consisting of many statements about personal characteristics which the subject checks.Happiness: Highly pleasant emotion characterized by outward manifestations of gratification; joy.Aggression: Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.Temperament: Predisposition to react to one's environment in a certain way; usually refers to mood changes.Affect: The feeling-tone accompaniment of an idea or mental representation. It is the most direct psychic derivative of instinct and the psychic representative of the various bodily changes by means of which instincts manifest themselves.Type A Personality: Established behavior pattern characterized by excessive drive and ambition, impatience, competitiveness, sense of time urgency, and poorly contained aggression.Sexual Behavior: Sexual activities of humans.Siblings: Persons or animals having at least one parent in common. (American College Dictionary, 3d ed)Sibling Relations: Interactions and relationships between sisters and/or brothers. The concept also applies to animal studies.Anxiety: Feeling or emotion of dread, apprehension, and impending disaster but not disabling as with ANXIETY DISORDERS.Atrial Fibrillation: Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.Hyperparathyroidism: A condition of abnormally elevated output of PARATHYROID HORMONE (or PTH) triggering responses that increase blood CALCIUM. It is characterized by HYPERCALCEMIA and BONE RESORPTION, eventually leading to bone diseases. PRIMARY HYPERPARATHYROIDISM is caused by parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. SECONDARY HYPERPARATHYROIDISM is increased PTH secretion in response to HYPOCALCEMIA, usually caused by chronic KIDNEY DISEASES.Cardiac Complexes, Premature: A group of cardiac arrhythmias in which the cardiac contractions are not initiated at the SINOATRIAL NODE. They include both atrial and ventricular premature beats, and are also known as extra or ectopic heartbeats. Their frequency is increased in heart diseases.Anxiety Disorders: Persistent and disabling ANXIETY.Hyperparathyroidism, Primary: A condition of abnormally elevated output of PARATHYROID HORMONE due to parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. It is characterized by the combination of HYPERCALCEMIA, phosphaturia, elevated renal 1,25-DIHYDROXYVITAMIN D3 synthesis, and increased BONE RESORPTION.War Crimes: Criminal acts committed during, or in connection with, war, e.g., maltreatment of prisoners, willful killing of civilians, etc.Balkan Peninsula: A peninsula in Southeast EUROPE between the Adriatic and Ionian seas on the West and Aegean and Black Seas on the East. (from Reconciliation: The formal process of obtaining a complete and accurate list of each patient's current home medications including name, dosage, frequency, and route of administration, and comparing admission, transfer, and/or discharge medication orders to that list. The reconciliation is done to avoid medication errors.National Library of Medicine (U.S.): An agency of the NATIONAL INSTITUTES OF HEALTH concerned with overall planning, promoting, and administering programs pertaining to advancement of medical and related sciences. Major activities of this institute include the collection, dissemination, and exchange of information important to the progress of medicine and health, research in medical informatics and support for medical library development.War: Hostile conflict between organized groups of people.Crime: A violation of the criminal law, i.e., a breach of the conduct code specifically sanctioned by the state, which through its administrative agencies prosecutes offenders and imposes and administers punishments. The concept includes unacceptable actions whether prosecuted or going unpunished.Athletes: Individuals who have developed skills, physical stamina and strength or participants in SPORTS or other physical activities.Patient Acuity: An assessment of a patient's illness, its chronicity, severity, and other qualitative aspects.Muscles: Contractile tissue that produces movement in animals.African Americans: Persons living in the United States having origins in any of the black groups of Africa.Fitness Centers: Facilities having programs intended to promote and maintain a state of physical well-being for optimal performance and health.Democracy: A system of government in which there is free and equal participation by the people in the political decision-making process.Politics: Activities concerned with governmental policies, functions, etc.Famous PersonsFederal Government: The level of governmental organization and function at the national or country-wide level.National Health Insurance, United StatesMass Behavior: Collective behavior of an aggregate of individuals giving the appearance of unity of attitude, feeling, and motivation.Journal Impact Factor: A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.Health Impact Assessment: Combination of procedures, methods, and tools by which a policy, program, or project may be judged as to its potential effects on the health of a population, and the distribution of those effects within the population.Strikes, Employee: Work-related situations in which the employees as a group refuse to work until certain conditions of employment are granted by the employer.Accidents, AviationFrance: A country in western Europe bordered by the Atlantic Ocean, the English Channel, the Mediterranean Sea, and the countries of Belgium, Germany, Italy, Spain, Switzerland, the principalities of Andorra and Monaco, and by the duchy of Luxembourg. Its capital is Paris.Housing: Living facilities for humans.Boxing: A two-person sport in which the fists are skillfully used to attack and defend.Australia: The smallest continent and an independent country, comprising six states and two territories. Its capital is Canberra.Speech: Communication through a system of conventional vocal symbols.Athletic Injuries: Injuries incurred during participation in competitive or non-competitive sports.Marijuana Smoking: Inhaling and exhaling the smoke from CANNABIS.Marijuana Abuse: The excessive use of marijuana with associated psychological symptoms and impairment in social or occupational functioning.Receptors, Opioid, mu: A class of opioid receptors recognized by its pharmacological profile. Mu opioid receptors bind, in decreasing order of affinity, endorphins, dynorphins, met-enkephalin, and leu-enkephalin. They have also been shown to be molecular receptors for morphine.National Longitudinal Study of Adolescent Health: Longitudinal study of a nationally representative sample of adolescents in grades 7-12 in the United States during the 1994-95 school year. The Add Health cohort has been followed into young adulthood. (from accessed 08/2012)Receptors, Opioid: Cell membrane proteins that bind opioids and trigger intracellular changes which influence the behavior of cells. The endogenous ligands for opioid receptors in mammals include three families of peptides, the enkephalins, endorphins, and dynorphins. The receptor classes include mu, delta, and kappa receptors. Sigma receptors bind several psychoactive substances, including certain opioids, but their endogenous ligands are not known.Analgesics, Opioid: Compounds with activity like OPIATE ALKALOIDS, acting at OPIOID RECEPTORS. Properties include induction of ANALGESIA or NARCOSIS.