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What is health?

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What is health? Being healthy involves far more than simply not being ill. If you feel in good health, your organs will be working properly and you will have the energy to live life to the full. This feeling of wellbeing affects your mind and your body.

How can I keep myself healthy?

The environment you live in, your diet and your lifestyle affect your health. Physical fitness is an important part of health, and this means that your heart, lungs, skeleton and muscles all work together smoothly to carry out your daily activities.

Fitness involves strength, stamina and suppleness, and you need regular exercise to maintain all these conditions.

Careful exercise develops a healthy heart and lungs, and gives you the strength and stamina that allow you to run, cycle and swim. A sensible diet and sufficient sleep also help you to keep healthy. Regular exercise helps to tone up the muscles and the circulatory system.

Can the environment harm my health?

Air pollution is an environmental factor that can damage health. Exhaust fumes from motor vehicles contain substances that can cause asthma and other breathing problems. In hot climates smog can also develop, trapping these air pollutants and making the health risk greater.

What causes disease?

Many diseases are infections that are caused by bacteria or viruses. Other illnesses are caused by failure of some of the body's organs or tissues. Sometimes parts of the body wear out or are not replaced properly, but most health problems are caused when the body simply fails to maintain itself. Joints can wear out, causing arthritis, or the digestive system may not work as efficiently, causing various types of stomach upset. Other diseases may be caused by a person's own lifestyle, for example lack of exercise or poor eating habits. Smoking is now known to be a contrybutary factor in many disease.

Air pollution is a serious health risk, which is why lead has been removed from petrol. However, cars and other vehicles still produce huge amounts of fumes which can cause lung damage.

Why is smoking harmful?

Cigarette smoking is known to be the main cause of lung cancer. It also causes bronchitis, heart disease and other problems with the circulation. Cigarette smoke contains many harmful substances, which are all deposited straight into the lungs. The smoke contains tiny particles of soot that can clog the air passages. The tar in smoke contains substances that can cause cancer. The nicotine in cigarettes is a strong addictive drug that can affect the heart and circulation. However, this addiction can be very difficult to break.

The harmful effects of cigarettes may only appear after many years of smoking. However, even when a smoker gives up the habit, it can be years before these health risks are cancelled out.


Tags: health, human, body, organs



Category: Health  - ( Health Archive)

Date Added: 23 December '11


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