Human Health is the state of physical, mental and social wellbeing. It involves more
than just the absence of disease. A truly healthy person not only feels good
physically but also has a realistic outlook on life and gets along well with
other people. Good health enables peoples to enjoy life and have the
opportunity to achieve the goals they have set for themselves.
To
achieve and maintain good health, people must have basic knowledge about the
human body and how it functions. Only then can they determine what will or what
will not help or damage their health. Therefore, learning about health should
be a part of every person’s education. Current knowledge about health together
with good living habits, can help almost everyone maintain good health and
improve the quality of life.
Society
as a whole benefits from people’s good health just as individuals do. For that
reason, many government and voluntary agencies strive to preserve and improve
the health of all people. The World Health Organization (WHO), an agency of the
United Nations, works to promote better health throughout the world.
Elements
of physical Health
All parts
of the body must work together properly to maintain physical health. A person
who is in good physical condition has the strength and energy to enjoy an
active life and withstand the stresses of daily life. Proper nutrition,
exercise, rest and sleep, cleanliness, and medical and dental care are all
essential to healthy living.
Nutrition.
A balanced diet provides all the food substances needed by the body for healthy
growth and development. Nutritionists use the term nutrients for these
substances and classified them into five main groups: (1) carbohydrates, (2)
fats, (3) protein, (4) vitamins, and (5) minerals. Water is also essential for
life, but it is often considered separately from nutrients.
A balanced diet consists of a wide variety of foods. Fruit and vegetables provide important vitamins and minerals. Meat, poultry, fish, eggs dairy products and nuts are rich sources of protein. Bread, cereals and potatoes furnish carbohydrates in addition to vitamins and minerals.
Good
nutrition also includes eating the proper amount of food each day. Overeating
can lead to obesity (fatness). Excess weight puts extra strain on the heart and
increases a person’s chances of getting such diseases as diabetes and heart
disease. Many people try to lose weight quickly and easily by following one of
the many widely advertised fad diets. But these diets can be dangerous,
especially if used over a long period of time. The safest way to lose weight is
to consult a doctor and follow the reducing programme he or she prescribes.
Most programme combine moderate daily exercise with a balanced diet that
contains a limited number of calories.
EXERCISE
helps keep the body healthy and fit. Vigorous exercise strengthens muscles and
improves the function of the circulatory and respiratory systems. Physical
fitness benefits both physical and mental health. It enables the body to withstand stresses that
otherwise could cause physical and emotional problems.
To
achieve fitness, a person should start an exercise programme slowly and build
it up gradually to a level that maintains a healthy heart and strong muscles.
Daily exercise provides the greatest benefits and so it is important to choose
exercises that can be performed every day. Such popular activities as
bicycling, jogging and swimming and even taking long, brisk walks, furnish the
vigorous exercise necessary for fitness. Participating in golf, tennis, or some
other spot only once or twice a week cannot develop and maintain fitness.
REST AND
SLEEP help overcome fatigue and restore energy to the body. Everyone needs rest
and sleep, but the amount required differs for each individual. Most adults
sleep from 7 to 8 ½ hours a night, through some need less sleep and others need
more. Young children may need more sleep at night plus a daytime nap.
Nearly
everyone has trouble falling asleep occasionally. However, frequent insomnia
(inability to sleep naturally) can indicate various physical or emotional
disorders. Therefore, it is best to consult a doctor about any persistent sleep
problem. Some people take sleeping pills to counteract insomnia, but such drugs
should not be used without a doctor’s prescription.
Rest and
relaxation are as important as sleep. After strenuous work or exercise, a
person may need a period of total rest. At other times, only relaxation or a
change of pace is necessary. Any activity that differs from the normal routine
of work or study can be relaxing or a change of pace is necessary. Any activity
that differs from the normal routine of work or study can be relaxing.
Pleasurable and relaxing activities help the body shed tension and remain
robust. If rest and relaxation do not relieve fatigue and tension, the
individual may have a physical or emotional problem.
CLEANLINESS
controls the growth of bacteria and other germs that can cause disease. A daily
bath or shower keeps the body free from dirt and another odour. In addition, it
helps prevent skin infections that may develop if bacteria grow and multiply on
the skin. The hair should also be washed regularly.
Daily
dental care is another important part of personal cleanliness. Brushing the
teeth properly and using dental floss keep the teeth clean and help prevent
decay and gum disease.
MEDICAL
AND DENTAL CARE. Regular checkups by a doctor and dentist play an important
role in safeguarding health. Doctors recommend that people have medical care at
the first sign of any illness. Early care can result in quicker cure. Treating
oneself for more than a day or two is unwise unless the condition improves
steadily.
Prevention
of disease is an important part of medical care. Parents should make sure that
their children receive immunization against diphtheria, German measles,
measles, mumps, polio, tetanus and whooping cough. See Immunization.
Elements
of mental health
Physical
health and mental health are closely connected. Mental health plays an
important role in both the way people behave and the way they feel. Emotionally
healthy individuals accept themselves as they are – with all their weaknesses
as well as their strengths. They remain in contact with reality, and they are
able to deal with stress and frustration. They also act independently of
outside influences and show genuine concern for other people.
Emotional
development. Experiences during childhood strongly influence a person’s mental
health throughout life. An infant is completely helpless at birth and must
depend on its parents for all its needs. Children remain dependent for many
years, but they slowly mature and learn to do things for themselves. They make
many mistakes during this long period of growth and maturation. Children thus
develop the knowledge necessary to deal with difficult situations in life. This
knowledge helps them maintain good mental health.
Emotional
development does not end when a person reaches adulthood. Similarly, an
individual’s mental health continues to charge from time to time. These changes
result from daily circumstances that cause either pleasure or pain for the
person.
Handling
stress is essential for avoiding both mental and physical illness. Feelings of
stress are the body’s response to
any threatening or unfamiliar situation. Most severe stress results from such
serious events as bereavement, a divorce, or loss of a job. However, stress can
occur even in pleasant situations, such as watching a football game. If not
handled properly, stress can lead to physical or emotional illness. It may
produce only mild symptoms, such as a
cough, a headache, or a rash. But severe and prolonged stress can contribute to
serious health problems, including high blood pressure and stomach ulcers.
No one
can avoid stress, but a person can lessen the danger of becoming ill from it.
Regular exercise and sufficient sleep strengthen the body’s resistance to
stress. Everyone should learn to relax by resting, taking a walk, meditating,
pursuing a hobby, or by any other method that he or she finds successful.
Social relationship have an important influence on mental health. Close personal relationships with friends and relatives provide opportunities for communication, sharing and emotional growth. Such relationships also can provide strength and support for dealing with challenging situation or personal problems.
Health hazards
The nature of health problem in the industrialized nations has changed dramatically during the 1900’s. until then, most people died from infections diseases, such as diphtheria or pneumonia. Today, however, infectious diseases are no longer the main killers. Improved sanitation, immunization programmes and the development of antibiotic drugs have brought these disease under control. Today, health specialists are concerned chiefly with diseases related to the aging process, unhealthy lifestyles and environmental hazards.
Tobacco,
alcohol and drug abuse, Cigarette smoking is a principle cause of unnecessary
and preventable illness and early death. Heart disease and lung cancer and
other lung diseases occur at a much higher rate among smokers than among
nonsmokers.
Many individuals
use various drugs in an effort to solve their problems or to improve their
alertness, mood, or self-confidence. However, the regular use of alcohol,
narcotics or sedatives can lead to addiction and also serious damage to the
body. People may become psychologically dependent on a wide variety of other
drugs, including amphetamines, cocaine, LSD, marijuana and tranquillizers.
These individuals may harm themselves further by neglecting their health and
nutrition. In addition, drugs can distort a person’s judgment and so increase the
risk of accidents.
Alcohol
is the most widely abused drug in the western world. About a tenth of all
drinkers become alcoholics. There is no cure for alcoholism, but the condition
can be treated. An alcoholic who gives up drinking can return to a healthy,
productive life.
Environmental
health hazards cause by modern technology can produce serious problems. Air
pollution can worsen the condition of people who suffer such respiratory
diseases as asthma and bronchitis. It may even help cause some diseases, including cancer and emphysema. In some areas,
insecticides and industrial wastes contaminate food and water supplies.
Excessive noise can also threaten people’s health. Noise coming from
aeroplanes, construction projects and industrial plants can cause hearing loss
as well as emotional damage.
Occupational
health hazards threaten the health of many workers. In some cases, substances
involved in a person’s job may cause long-term damage that appears only after
many years. for example, many coal miners develop a lung disease called
pneumoconiosis from inhaling coal dust. Dust also causes lung diseases among
workers in the asbestos and cotton industries. Some industrial chemicals,
including arsenic and vinyl chloride, cause cancer. People who work with X rays
and other forms of radiation also face a health hazard unless proper precaution
are taken.
Public
health
Public
health includes all actions taken to maintain and improve the general health of
a community. Government health programmes provide most public health services.
in addition, many voluntary health agencies receive contributions to combat
specific diseases, such as cancer and lung disease. These agencies provide and
make important contributions to health education.
In many
countries health departments provide a wide range of service in most
communities. For example, they work to prevent and control disease by providing
proper sanitation, conducting immunization programmes, and enforcing quarantine
regulations. An other important function of public health agencies is to
provide health education for individuals, groups and organizations.
Personel
Health: Alcoholism, baby, bath, child, cigarette, circumstances, diet, disease,
drug abuse, Fat (Fats and disease), fatigue, food, growth, human body, immunity,
immunization, nutrition, physical fitness, posture, sauna, sleep, smoking,
stress, teeth (care of the teeth and gums), Weight control.
Other
related articles: environmental pollution, holistic medicine, medicine,
physical education, recreation, safety, UNICEF, and World Health Organisation.
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