Overview

A vitamin is an organic compound required as a nutrient in tiny amounts by an organism. A compound is called a vitamin when it cannot be synthesized in sufficient quantities by an organism, and must be obtained from the diet. Thus, the term is conditional both on the circumstances and the particular organism. For example, ascorbic acid functions as vitamin C for some animals but not others, and vitamins D and K are required in the human diet only in certain circumstances.

Vitamins are classified by their biological and chemical activity, not their structure. Thus, each "vitamin" actually refers to a number of vitamer compounds, which form a set of distinct chemical compounds that show the biological activity of a particular vitamin. Such a set of chemicals are grouped under an alphabetized vitamin "generic descriptor" title, such as "vitamin A," which (for example) includes retinal, retinol, and many carotenoids. Vitamers are often inter-convertible in the body. The term vitamin does not include other essential nutrients such as dietary minerals, essential fatty acids, or essential amino acids, nor does it encompass the large number of other nutrients that promote health but are otherwise required less often.

Wednesday, June 25, 2008

Early Symptoms of Lung Cancer

Knowing and understanding of the early symptoms of lung cancer is one of the most important things that those who pose a risk for the disease can do. Lung cancer is the most treatable, if detected early, and the only way to discover it is early enough to recognize and report early symptoms of lung cancer. If you notice a combination of these symptoms of lung cancer, be sure to talk to your doctor.

One the early symptoms of lung cancer is a nagging cough that just not better. Often the cough worsens over time and is accompanied by chronic chest pain. Coughing up blood is another of the many early symptoms of lung cancer. In fact, coughing up blood is one of the symptoms graten send lung cancer patients to their doctors. Recurring bronchitis and pneumonia sometimes indicates that the disease is present. Fatigue and other symptoms are shortness of respect, if you suspect the disease. No matter what the symptoms are, if you have lung cancer, they will gradually progress in the intensity, as the disease progresses.

These lung cancer symptoms are not always indicate that the disease is present. There are other far less dangerous conditions, can cause these symptoms. However ignore the symptoms is dangerous, because if they are on lung cancer, the disease will continue to progress. Early treatment is the best way to successfully fight lung cancer, not ignore these symptoms.

 

Educate Yourself Fully on Lung Cancer

Article Source: http://EzineArticles.com/?expert=Norm_Butler

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