Showing posts with label Health. Show all posts
Showing posts with label Health. Show all posts

Saturday, January 1

Timeline of vaccines

This is a timeline of the development of prophylactic human vaccines. Early vaccines may be listed by the first year of development or testing, but later entries usually show the year the vaccine finished trials and became available on the market. Although vaccines exist for the diseases listed below, only smallpox has been eliminated worldwide. The other illnesses continue to cause tens of millions of deaths each year. Currently, polio and measles are the targets of active worldwide eradication 

18th century

1796 vaccine for smallpox developed by Edward Jenner. This was the first vaccine developed as a treatment for any disease, and was derived from a weakened version of the disease cowpox.

19th century

1879 First vaccine for cholera
1885 First vaccine for rabies by Louis Pasteur and Émile Roux
1890 First vaccine for tetanus
1896 First vaccine for typhoid fever
1897 First vaccine for bubonic plague

20th century

1921 First vaccine for diphtheria
1926 First vaccine for pertussis (whooping cough)
1927 First vaccine for tuberculosis
1932 First vaccine for yellow fever
1937 First vaccine for typhus
1945 First vaccine for influenza
1952 First vaccine for polio by Jonas Salk
1954 First vaccine for Japanese encephalitis
1954 First vaccine for anthrax
1957 First vaccine for adenovirus-4 and 7
1962 First oral polio vaccine
1963 First vaccine for measles
1967 First vaccine for mumps
1970 First vaccine for rubella
1974 First vaccine for chicken pox
1977 First vaccine for pneumonia (Streptococcus pneumoniae)
1978 First vaccine for meningitis (Neisseria meningitidis)
1981 First vaccine for hepatitis B (first vaccine to target a cause of cancer)
1985 First vaccine for Haemophilus influenzae type b (HiB)
1992 First vaccine for hepatitis A
1998 First vaccine for Lyme disease
1998 First vaccine for rotavirus

21st century

2003 First nasal vaccine for influenza approved in US, FluMist by MedImmune
2006 First vaccine for human papillomavirus, Gardasil by Merck & Co.
2009 Swine flu vaccine

(source:wikipedia)

Timeline of antibiotics

This is the timeline of antimicrobial (anti-infective) therapy. The years show when given was released onto the pharmaceutical market. Please note that this is NOT a timeline of the antibiotic itself!
1910 - Arsphenamine aka Salvarsan
1912 - Neosalvarsan
1935 - Prontosil (an oral precursor to sulfanilimide)
1936 - Sulfanilimide
1938 - Sulfapyridine (M&B 693)
1939 - sulfacetamide
1940 - sulfamethizole
1942 - benzylpenicillin
1942 - gramicidin S
1942 - sulfadimidine
1943 - sulfamerazine
1944 - streptomycin
1947 - sulfadiazine
1948 - chlortetracycline
1949 - chloramphenicol
1949 - neomycin
1950 - oxytetracycline
1950 - penicillin G procaine
1952 - erythromycin
1954 - benzathine penicillin
1955 - spiramycin
1955 - tetracycline
1955 - thiamphenicol
1955 - vancomycin
1956 - phenoxymethylpenicillin
1958 - colistin
1958 - demeclocycline
1959 - virginiamycin
1960 - methicillin
1960 - metronidazole
1961 - ampicillin
1961 - spectinomycin
1961 - sulfamethoxazole
1961 - trimethoprim
1962 - cloxacillin
1962 - fusidic acid
1963 - fusafungine
1963 - lymecycline
1964 - gentamicin
1966 - doxacycline
1967 - carbenicillin
1967 - rifampicin
1968 - clindamycin
1970 - cefalexin
1971 - cefazolin
1971 - pivampicillin
1971 - tinidazole
1972 - amoxicillin
1972 - cefradine
1972 - minocycline
1972 - pristinamycin
1973 - fosfomycin
1974 - talampicillin
1975 - tobramycin
1975 - bacampicillin
1975 - ticarcillin
1976 - amikacin
1977 - azlocillin
1977 - cefadroxil
1977 - cefamandole
1977 - cefoxitin
1977 - cefuroxime
1977 - mezlocillin
1977 - pivmecillinam
1979 - cefaclor
1980 - cefmetazole
1980 - cefotaxime
1980 - cefsulodin
1980 - piperacillin
1981 - amoxicillin/clavulanic acid (co-amoxiclav)
1981 - cefperazone
1981 - cefotiam
1981 - cefsulodin
1981 - latamoxef
1981 - netelmicin
1982 - apalcillin
1982 - ceftriaxone
1982 - micronomicin
1983 - cefmenoxime
1983 - ceftazidime
1983 - ceftiroxime
1983 - norfloxacin
1984 - cefonicid
1984 - cefotetan
1984 - temocillin
1985 - cefpiramide
1985 - imipenem/cilastatin
1985 - ofloxacin
1986 - mupirocin
1986 - aztreonam
1986 - cefoperazone/sulbactam
1986 - ticarcillin/clavulanic acid
1987 - ampicillin/sulbactam
1987 - cefixime
1987 - roxithromycin
1987 - sultamicillin
1987 - ciprofloxacin
1987 - rifaximin
1988 - azithromycin
1988 - flomoxef
1988 - isepamycin
1988 - midecamycin
1988 - rifapentine
1988 - teicoplanin
1989 - cefpodoxime
1989 - enrofloxacin
1989 - lomefloxacin
1990 - arbekacin
1990 - cefozidime
1990 - clarithromycin
1991 - cefdinir
1992 - cefetamet
1992 - cefpirome
1992 - cefprozil
1992 - ceftibufen
1992 - fleroxacin
1992 - loracarbef
1992 - piperacillin/tazobactam
1992 - rufloxacin
1993 - brodimoprim
1993 - dirithromycin
1993 - levofloxacin
1993 - nadifloxacin
1993 - panipenem/betamipron
1993 - sparfloxacin
1994 - cefepime
1999 - quinupristin/dalfopristin
2000 - linezolid
2001 - telithromycin
2003 - daptomycin
2005 - tigecycline
2005 - doripenem
2009 - telavancin

See also


(source:wikipedia)

Timeline of medicine and medical technology

Timeline of the history of medicine and medical technology.

Antiquity

2600 ac – Imhotep wrote texts on ancient Egyptian medicine describing diagnosis and treatment of 200 diseases in 3rd dynasty Egypt.
2596 BC – The Huangdi Neijing (Yellow Emperor's Classic of Internal Medicine) is published, laying the framework for traditional Chinese medicine
1500 BC – Saffron used as a medicine on the Aegean island of Thera in ancient Greece
500 BC – Bian Que becomes the earliest physician known to use acupuncture and pulse diagnosis
420 BC – Hippocrates of Cos maintains that diseases have natural causes and puts forth the Hippocratic Oath, marking the birth of medicine in the west
280 BC – Herophilus studies the nervous system and distinguishes between sensory nerves and motor nerves
250 BC – Erasistratus studies the brain and distinguishes between the cerebrum and cerebellum
200 BC – the Charaka Samhita uses a rational approach to the causes and cure of disease and uses objective methods of clinical examination
50–70 – Pedanius Dioscorides writes De Materia Medica – a precursor of modern pharmacopeias that was in use for almost 1600 years
180 – Galen studies the connection between paralysis and severance of the spinal cord
220 – Zhang Zhongjing publishes Shang Han Lun (On Cold Disease Damage), the oldest medical textbook in the world
270 – Huangfu Mi writes the Zhenjiu Jiayijing (The ABC Compendium of Acupuncture), the first textbook focusing solely on acupuncture
400 – the Sushruta Samhita is published, laying the framework for Ayurvedic medicine

]Middle Ages

This section may contain inappropriate or misinterpreted citations that do not verify the text. Please help improve this article by checking for inaccuracies. (help, talk, get involved!) (September 2010)
750 – Kawsar Ahmed writes the Ayurvedic text Nidana where he lists diseases along with their causes, symptoms, and complications.
c. 800–873 – Al-Kindi (Alkindus) introduces quantification into medicine with his De Gradibus
c. 830–870 – Hunayn ibn Ishaq translates Galen's works into Arabic
c. 838–870 – Ali ibn Sahl Rabban al-Tabari, a pioneer of pediatrics and the field of child development, writes the first encyclopedia of medicine.
c. 865–925 – Rhazes pioneers pediatrics, and makes the first clear distinction between smallpox and measles in his al-Hawi.
1000 – Abulcasis establishes surgery as a profession of in his Kitab al-Tasrif, which remains a standard textbook in Muslim and European universities until the 16th century. The book described the plaster cast, inhalant anesthesia, and many surgical instruments.
1021 – Alhazen completes his Book of Optics, which made important advances in ophthalmology and eye surgery, as it correctly explained the process of visual perception.
c. 1030 – Avicenna writes The Book of Healing and The Canon of Medicine, in which he establishes experimental medicine and evidence-based medicine. The Canon remains a standard textbook in Muslim and European universities until the 18th century. The book's contributions to medicine includes the introduction of clinical trials, the discovery of contagious diseases, the distinction of mediastinitis from pleurisy, the contagious nature of phthisis, the distribution of diseases by water and soil, and the first careful descriptions of skin troubles, sexually transmitted diseases, perversions, and nervous ailments, as well the use of ice to treat fevers, and the separation of medicine from pharmacology.
1100–1161 – Avenzoar carries out human dissections and postmortem autopsy, and proves that the skin disease scabies is caused by a parasite, which contradicted the erroneous theory of humorism. He was also the first to provide a real scientific etiology for the inflammatory diseases of the ear, and the first to clearly discuss the causes of stridor. Modern anesthesia was also developed in al-Andalus by the Muslim anesthesiologists Ibn Zuhr and Abulcasis. They utilized oral as well as inhalant anesthetics, and they performed hundreds of surgeries under inhalant anesthesia with the use of narcotic-soaked sponges which were placed over the face.
1242 – Ibn an-Nafis suggests that the right and left ventricles of the heart are separate and discovers the pulmonary circulation (the cycle involving the ventricles of the heart and the lungs) and coronary circulation, for which he is considered the pioneer of circulation theory and one of the greatest physiologists of the Middle Ages. He emphasized the rigours of verification by measurement, observation and experiment, and was an early proponent of experimental medicine, postmortem autopsy, and human dissection. He also discredited many other erroneous Avicennian and Galenic doctrines on the four humours, pulse bones, muscles, intestines, sensory organs, bilious canals, esophagus, stomach, and the anatomy of other parts of the human body. Ibn al-Nafis also drew diagrams to illustrate different body parts in his new physiological system.
c. 1248 – Ibn al-Baitar wrote on botany and pharmacy, studied animal anatomy and medicine, and was a pioneer of veterinary medicine.
1249 – Roger Bacon writes about convex lens spectacles for treating long-sightedness
14th century – When the Black Death bubonic plague reached al-Andalus, Ibn Khatima hypothesized that infectious diseases are caused by microorganisms which enter the human body.
1313–1374 – Ibn Khatima wrote a treatise called On the Plague, in which he establishes the existence of contagion through "experience, investigation, the evidence of the senses and trustworthy reports." He also claims that "transmission is affected through garments, vessels and earrings."
1403 – concave lens spectacles to treat myopia
early 16th century: Paracelsus, an alchemist by trade, rejects occultism and pioneers the use of chemicals and minerals in medicine

1500–1800

1543 – Andreas Vesalius publishes De Fabrica Corporis Humani which corrects Greek medical errors and revolutionizes European medicine
1546 – Girolamo Fracastoro proposes that epidemic diseases are caused by transferable seedlike entities
1553 – Miguel Serveto describes the circulation of blood through the lungs. He is accused of heresy and burned at the stake
1556 – Amato Lusitano describes venous valves in the Ázigos vein
1559 – Realdo Colombo describes the circulation of blood through the lungs in detail
1563 – Garcia de Orta founds tropical medicine with his treatise on Indian diseases and treatments
1596 – Li Shizhen publishes Běncǎo Gāngmù or Compendium of Materia Medica
1603 – Girolamo Fabrici studies leg veins and notices that they have valves which allow blood to flow only toward the heart
1628 – William Harvey explains the circulatory system in Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus
1701 – Giacomo Pylarini gives the first smallpox innoculations in Europe. They were widely practised in the east before then.
1736 – Claudius Aymand performs the first successful appendectomy
1747 – James Lind discovers that citrus fruits prevent scurvy
1774 – Joseph Priestley discovers nitrous oxide, nitric oxide, ammonia, hydrogen chloride and oxygen
1785 – William Withering publishes "An Account of the Foxglove" the first systematic description of digitalis in treating dropsy
1790 – Samuel Hahnemann rages against the prevalent practice of bloodletting as a universal cure and founds homeopathy
1796 – Edward Jenner develops a smallpox vaccination method
1799 – Humphry Davy discovers the anesthetic properties of nitrous oxide

1800 – 1899

1800 – Humphry Davy announces the anaesthetic properties of nitrous oxide
1816 – Rene Laennec invents the stethoscope
1818 – James Blundell performs the first successful human blood transfusion.
1842 – Crawford Long performs the first surgical operation using anaesthesia with ether
1847 – Ignaz Semmelweis discovers how to prevent puerperal fever
1849 – Elizabeth Blackwell is the first woman to gain a medical degree
1855 – first rubber condom
1867 – Lister publishes Antiseptic Principle of the Practice of Surgery, based partly on Pasteur's work.
1870– Louis Pasteur and Robert Koch establish the germ theory of disease
1879 – first vaccine for cholera
1881 – Louis Pasteur develops an anthrax vaccine
1882 – Louis Pasteur develops a rabies vaccine
1890– Emil von Behring discovers antitoxins and uses them to develop tetanus and diphtheria vaccines
1895 – Wilhelm Conrad Röntgen discovers medical use of X-rays in medical imaging

1900 – 1999

1901 – Karl Landsteiner discovers the existence of different human blood types
1901 – Alois Alzheimer identifies the first case of what becomes known as Alzheimer's disease
1903 - Willem Einthoven discovers electrocardiography (ECG/EKG)
1906 – Frederick Hopkins suggests the existence of vitamins and suggests that a lack of vitamins causes scurvy and rickets
1907 – Paul Ehrlich develops a chemotherapeutic cure for sleeping sickness
1908 – Victor Horsley and R. Clarke invents the stereotactic method
1909 – First Intrauterine device described by Richard Richter.
1910 - Hans Christian Jacobeus performs the first laparoscopy on humans
1917 – Julius Wagner-Jauregg discovers the malarial fever shock therapy for general paresis of the insane
1921 – Edward Mellanby discovers vitamin D and shows that its absence causes rickets
1921 – Frederick Banting and Charles Best discover insulin – important for the treatment of diabetes
1921 – Fidel Pagés pioneers epidural anesthesia
1923 – First vaccine for Diphtheria
1926 – First vaccine for Pertussis
1927 – First vaccine for Tuberculosis
1927 – First vaccine for Tetanus
1928 – Alexander Fleming discovers penicillin
1929 – Hans Berger discovers human electroencephalography
1932 – Gerhard Domagk develops a chemotherapeutic cure for streptococcus
1933 – Manfred Sakel discovers insulin shock therapy
1935 – Ladislas J. Meduna discovers metrazol shock therapy
1935 – First vaccine for Yellow Fever
1936 – Egas Moniz discovers prefrontal lobotomy for treating mental diseases
1938 – Ugo Cerletti and Lucio Bini discover electroconvulsive therapy
1943 – Willem Kolff build the first dialysis machine
1949 – First implant of intraocular lens, by Sir Harold Ridley
1952 – Jonas Salk develops the first polio vaccine
1954 - Joseph Murray performs the first human kidney transplant (on identical twins)
1957 – William Grey Walter invents the brain EEG topography (toposcope)
1960 – Invention of Cardiopulmonary resuscitation (CPR)
1960 – First combined oral contraceptive approved by the FDA
1962 – First Oral Polio Vaccine
1963 - Thomas Starzl performs the first human liver transplant
1963 - James Hardy performs the first human lung transplant
1964 – First vaccine for Measles
1965 – Frank Pantridge installs the first portable defibrillator
1965 – First commercial ultrasound
1966 - Richard Lillehei performs the first human pancreas transplant
1967 – First vaccine for Mumps
1967 – Christiaan Barnard performs the first human heart transplant
1970 – First vaccine for Rubella
1970 - Cyclosporine, the first effective immunosuppressive drug is introduced in organ transplant practice
1971 – Sir Godfrey Hounsfield invents the first commercial CT scanner
1976 – First commercial PET scanner
1978 – Last fatal case of smallpox
1980 – Raymond Damadian builds first commercial MRI scanner
1981 – First vaccine for Hepatitis B
1981 - Bruce Reitz performs the first human heart-lung combined transplant
1987 – Ben Carson, leading a 70-member medical team in Germany, was the first to separate occipital craniopagus twins.
1992 – First vaccine for Hepatitis A available

2000 – present

2003 – Carlo Urbani, of Doctors without Borders alerted the World Health Organization to the threat of the SARS virus, triggering the most effective response to an epidemic in history. Urbani succumbs to the disease himself in less than a month.
2005 – Jean-Michel Dubernard performs the first partial face transplant
2006 – First HPV vaccine approved
2006 – Second rotavirus vaccine approved (first was withdrawn)
2008 – Laurent Lantieri performs the first full face transplant

See also


(source:wikipedia)

Tuesday, October 19

Chilean miners health,issues after rescue

Chilean Miners: What health problems will the rescued miners for Chili mines  face? "say"Pittsburgh doctor who has overseen medical rescue operations in mining disasters about potential trouble ahead, while the New York Times' Donald G. McNeil, Jr. presents a far more positive picture of the miners' health issues after rescue.

Medicare Fraud: In one of the nation’s largest Medicare fraud cases, the feds have indicted dozens of alleged members of an Armenian organized crime ring that allegedly bilked Medicare out of $35 million, according to the Wall St. Journal’s Michael Rothfeld. Sound familiar? It should: back in July, officials nailed 94 suspected Medicare fraudsters in five cities.

Health Reform: If you’re covering health reform’s rollout at the local or state level, you’ll want to check out the Alliance for Health Reform’s wonky but useful new guide to who plays what role and under what rules.

Urgent Care: Urgent care centers may be good for patients but bad for health reform, argues Bnet health business blogger Ken Terry. This is a good entrée to any local story about health reform’s rollout.

Nutrition: Why does the federal government subsidize high-fructose corn syrup but tax imported vegetables? “One hand encourageth healthy eating, whilst the other taxeth the living daylights out of it,” 

Friday, October 15

Clarian Health People Mover

Clarian People Mover is 1.4-mile (2.3 km) long people mover in the city of Indianapolis, Indiana, in the United States. The system opened on June 28, 2003 to connect the Methodist Hospital of Indianapolis, Indiana University Hospital and theJames Whitcomb Riley Hospital for Children, jointly operated as a single hospital by Clarian Health.
The dual-track system is open to the public and operates around the clock, taking 5 minutes in each direction.During the daytime, a train departs automatically every six minutes. It is notable for being the only private transportation system in the United States constructed to run above public streets.

History

In 1997, the three hospital operations were combined under Indiana law creating a shared-staff of over 10,000 employees who could be required to travel between the campuses. Commuting between the three sites was complicated and required the crossing of the Interstate 65 highway by shuttle buses.
In May 2000, a Health Care Transportation System Franchise Agreement was signed, followed by the People Mover – State of Indiana Airspace Agreement and Lease in November 2000 to allow crossing under the Interstate 65 highway for a period of 25 years.


System

The large gap between the rails avoids collecting snow. In the center are pneumatic tubes for document & sample transfer.
The system was constructed by Schwager Davis Inc. (SDI) from San Jose, California to their Unitrakstandard.
There are two separate parallel elevated guidewaysside-by-side, both of which operate in both directions. The concrete rails have a gap between them, designed to combat winter snow and the people mover is therefore not technically a monorail.
Each of the two tracks carries a train with three carriages for a total capacity of 81 passengers. Each train weighs 45,000 pounds (20 t) and has twenty-four passenger seats across the three cars. The rest of the passenger capacity is made up of standing places.


Operation

During the night-time, one track is closed between 22:00–05:30 for maintenance, with the second train/track operated in on-demand mode by elevator-style call buttons.


Incidents

  • On December 13, 2002 one of the cars overran coming into Riley station, bumping the buffer and a glass walkway beyond. The minor incident occurred whilst running in an automated testing mode, before the staref name="bump">"Empty Monorail Car Bumps Into Walkway, Causes Minor Damage". Indiana News. 2002-12-13. Retrieved 2008-11-14. "An empty monorail car apparently overshot its stop outside Riley Hospital for Children and bumped into a walkway [...] No injuries were reported in the crash [...] The monorail system [..] is in a testing phase,"
  • On August 5, 2009 at around midday, one of the elevated cars stopped near to Canal Station. The Indianapolis Fire Department were called to assist passengers inside the car, but a rescue was not required.

Wednesday, September 22

Health

Health facts,
Health is the general condition of a person in all aspects. It is also a level of functional and/or metabolic efficiency of an organism, often implicitly human.


The Caduceus
At the time of the creation of the World Health Organization (WHO), in 1948, health was defined as "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity".
Only a handful of publications have focused specifically on the definition of health and its evolution in the first 6 decades. Some of them highlight its lack of operational value and the problem created by use of the word "complete." Others declare the definition, which has not been modified since 1948, "simply a bad one." 
In 1986, the WHO, in the Ottawa Charter for Health Promotion, said that health is "a resource for everyday life, not the objective of living. Health is a positive concept emphasizing social and personal resources, as well as physical capacities." Classification systems such as the WHO Family of International Classifications (WHO-FIC), which is composed of the International Classification of Functioning, Disability, and Health (ICF) and the International Classification of Diseases (ICD) also define health.
Overall health is achieved through a combination of physical, mental, and social well-being, which, together is commonly referred to as the Health Triangle.

Determinants of health

The LaLonde report suggests that there are four general determinants of health including human biology, environment, lifestyle, and healthcare services. Thus, health is maintained and improved not only through the advancement and application of health science, but also through the efforts and intelligent lifestyle choices of the individual and society.
The Alameda County Study examines the relationship between lifestyle and health. It has found that people can improve their health via exercise, enough sleep, maintaining a healthy weight, limiting alcohol use, and avoiding smoking.
A major environmental factor affecting health is water quality, especially for the health of infants and children in developing countries.
Studies show that in developed countries, the lack of neighborhood recreational space that includes the natural environment leads to lower levels of neighborhood satisfaction and higher levels of obesity; therefore, lower overall well being. Therefore, the positive psychological benefits of natural space in urban neighborhoods should be taken into account in public policy and land use.
According to the World Health Organization, the main determinants of health include the social and economic environment, the physical environment and the person's individual characteristics and behaviors. Generally, the context in which an individual lives is of great importance on his life quality and health status. The social and economic environment are key factors in determining the health status of individuals given the fact that higher education levels are linked with a higher standard of life as well as a higher income. Generally, people who finish higher education are more likely to get a better job and therefore are less prone to stress by comparing to individuals with low education levels.
The physical environment is perhaps the most important factor that should be considered when classifying the health status of an individual. This includes factors such as clean water and air, safe houses, communities and roads all contribute to good health.
Genetics are also part of the system based on which the health of the population can be established. Genetics are closely related to the habits and behaviors individuals develop during their life, particularly in terms of lifestyle choices. For instance, people who come from families whose members had a more active lifestyle and followed healthier diets, non-smoking and non-drinking are more likely to follow the same pattern in their life. The example set by the family as well as the relationship with friends and family can have a great impact on one's general health. Nonetheless, genetics may play a role in the manner in which people cope with stress.
Moreover, the World Health Organization lists a wide range of other factors that can influence the well being of a person. According to WHO, the gender, social support networks and health services in terms of both quality and access to them are to be considered as health determinants. Access to health care is one of the large issues of the nowadays society, maybe even greater than the quality of the service. Individuals in developing countries are more prone to suffer from different health conditions because their access to the health care system is restricted mostly from financial reasons.
Although many individuals are often criticized for not taking good care of their health based on the presumption that the mirror's of one's personality is one's health., it is now accepted that there are many factors that have a significant impact on one's health and which cannot be controlled.

Maintaining health

Main article: Self care
Achieving and maintaining health is an ongoing process. Effective strategies for staying healthy and improving one's health include the following elements:

Observations of Daily Living 
Personal health depends partially on one's active, passive, and assisted observations about their health in their everyday life. The information gleaned from such observations may be used to inform personal decisions and actions (e.g., "I feel tired in the morning so I am going to try sleeping on a different pillow"), as well as clinical decisions and treatment plans (e.g., a patient who notices his or her shoes are tighter than usual may be having exacerbation of left-sided heart failure, and may require diuretic medication to reduce fluid overload) for patients who share their observations with their health care providers.

Social Activity
Main article: Social relation
Personal health depends partially on the social structure of one's life. The maintenance of strong social relationships is linked to good health conditions, longevity, productivity, and a positive attitude. This is because positive social interaction as viewed by the participant increases many chemical levels in the brain which are linked to personality and intelligence traits.
Volunteering also can lead to a healthy life. To be a volunteer, while gaining plenty of social benefits, people also take their mind off their own troubles.[citation needed] Volunteering could even add years of life. According to a university study, compared with people who did not volunteer, senior citizens who volunteered showed a 67% reduced risk of dying during a seven-year period.

Hygiene
Main article: Hygiene
Hygiene is the practice of keeping the body clean to prevent infection and illness, and the avoidance of contact with infectious agents. Hygiene practices include bathing, brushing and flossing teeth, washing hands especially before eating, washing food before it is eaten, cleaning food preparation utensils and surfaces before and after preparing meals, and many others. This may help prevent infection and illness. By cleaning the body, dead skin cells are washed away with the germs, reducing their chance of entering the body.

Stress management
Main article: Stress management

Prolonged psychological stress may negatively impact health, and has been cited as a factor in cognitive impairment with aging, depressive illness, and expression of disease.. Stress management is the application of methods to either reduce stress or increase tolerance to stress. Relaxation techniques are physical methods used to relieve stress. Psychological methods include cognitive therapy, meditation, and positive thinking which work by reducing response to stress. Improving relevant skills and abilities builds confidence, which also reduces the stress reaction to situations where those skills are applicable.
Reducing uncertainty, by increasing knowledge and experience related to stress-causing situations, has the same effect. Learning to cope with problems better, such as improving problem solving and time management skills, may also reduce stressful reaction to problems. Repeatedly facing an object of one's fears may also desensitize the fight-or-flight response with respect to that stimulus—e.g., facing bullies may reduce fear of bullies.


Health care
Main article: Health care
Health care 
 is the prevention, treatment, and management of illness and the preservation of mental and physical well being through the services offered by the medical, nursing, and allied health professions.


Workplace wellness programs
Main article: Workplace wellness
Workplace wellness programs are recognized by an increasingly large number of companies for their value in improving the health and well-being of their employees, and for increasing morale, loyalty, and productivity.[citation needed] Workplace wellness programs can include things like onsite fitness centers, health presentations, wellness newsletters, access to health coaching, tobacco cessation programs and training related to nutrition, weight and stress management. Other programs may include health risk assessments, health screenings and body mass index monitoring.
Wellness programs may also be found in such places neighborhood community centers and schools. These typically require participants to have a greater degree of commitment to themselves, as they are voluntary.


Public health

Main article: Public health


Postage stamp, New Zealand, 1933. Public health has been promoted - and depicted - in a wide variety of ways.
Public health is "the science and art of preventing disease, prolonging life and promoting health through the organised efforts and informed choices of society, organizations, public and private, communities and individuals." (Winslow, 1920)[citation needed] It is concerned with threats to the overall health of a community based on population health analysis. The population in question can be as small as a handful of people or as large as all the inhabitants of several continents (for instance, in the case of a pandemic). Public health has many sub-fields, but is typically divided into the categories of epidemiology, biostatistics and health services. Environmental, social and behavioral health, and occupational health, are also important fields in public health.
The focus of public health intervention is to prevent rather than treat a disease through surveillance of cases and the promotion of healthy behaviors. In addition to these activities, in many cases treating a disease can be vital to preventing it in others, such as during an outbreak of an infectious disease. Vaccination schedules and distribution of condoms are examples of public health measures.
Unlike clinical professionals, public health is more focused on entire populations rather than on individuals. Its aim is preventing from happening or re-occurring health problems by implementing educational programs, developing policies, administering services, and conducting research.
Public health also takes several actions to limit the health disparities between different areas of the country, continent or world. The great issue this system is trying to solve is the access of individuals to health care which has always been restricted for those who did not dispose of the necessary financial means. Other academic disciplines that are comprised by this field include maternal and child health, health services administration, global health, public health practice, public health policy and nutrition.
The great positive impact of public health programs is widely admitted. Because of the health policies and the actions public health professionals develop, the 20th century has registered a decrease of the mortality rates in infants and children and a constant increase in life expectancy. It is estimated that the life expectancy for Americans has increased by thirty years since 1900.


Role of science in health

Main article: Health science
Health science is the branch of science focused on health, and it includes many subdisciplines. There are two approaches to health science: the study and research of the human body and health-related issues to understand how humans (and animals) function, and the application of that knowledge to improve health and to prevent and cure diseases.


Sources
Health research builds primarily on the basic sciences of biology, chemistry, and physics as well as a variety of multidisciplinary fields (for example medical sociology). Some of the other primarily research-oriented fields that make exceptionally significant contributions to health science are biochemistry, epidemiology, and genetics.


Application
Applied health sciences also endeavor to better understand health, but in addition they try to directly improve it. Some of these are: health education, biomedical engineering, biotechnology, nursing, nutrition, pharmacology, pharmacy, public health (see above), social work, psychology, physical therapy, and medicine. The provision of services to maintain or improve people's health is referred to as health care (see above). Irene.




(source:wikipedia)