HOW CANCER DEVELOPS

Some time ago I wrote about what it was cancer, well now who will write about how the cancer could develop in the human body, so that we can take advantage to be able to avoid cancer.

A healthy human body is composed of 30 trillion cells, most of which are in constant turnover as cells die and others reproduce to replace them in an orderly fashion. Healthy cells of the skin, hair, lining of the stomach, and blood, for example, regularly reproduce by dividing to form two daughter cells.

This cell division cycle proceeds under the regulation of the body’s intricately tuned control system. Among other functions, this control system ensures that cells only divide when needed, so that organs and tissues maintain their correct shape and size. Should this system fail, a variety of backup safety mechanisms prevent the cell from dividing uncontrollably. In order for a cell to become cancerous, every one of these safety mechanisms must fail.

Cancer begins in genes, bits of biochemical instructions composed of individual segments of the long, coiled molecule deoxyribonucleic acid (DNA). Genes contain the instructions to make proteins, molecular laborers that serve as building blocks of cells, control chemical reactions, or transport materials to and from cells.

The proteins produced in a human cell determine the function of each cell, and ultimately, the function of the entire body. In a cancerous cell, permanent gene alterations, or mutations, cause the cell to malfunction. For a cell to become cancerous, usually three to seven different mutations must occur in a single cell. These genetic mutations may take many years to accumulate, but the convergence of mutations enables the cell to become cancerous.

CANCER

Introduction

Cancer , any of more than 100 diseases characterized by excessive, uncontrolled growth of abnormal cells, which invade and destroy other tissues. Cancer develops in almost any organ or tissue of the body, but certain types of cancer are more life-threatening than others. In the United States and Canada cancer ranks as the second leading cause of death, exceeded only by heart disease.

For reasons not well understood, cancer rates vary by gender, race, and geographic region. For instance, more men than women develop cancer, and African Americans are more likely to develop cancer than people of any other racial group in North America. The frequency of certain cancers also varies globally. For example, breast cancer is more common in wealthy countries, and cervical cancer is more common in poor countries.
Although people of all ages develop cancer, most types of cancer are more common in people over the age of 50.
Cancer usually develops gradually over many years, the result of a complex mix of environmental, nutritional, behavioral, and hereditary factors. Scientists do not completely understand the causes of cancer, but they know that certain lifestyle choices can reduce the risk of developing many types of cancer. Not smoking, eating a healthy diet, and exercising moderately for at least 30 minutes each day can lower the likelihood of developing cancer.

Just 60 years ago a cancer diagnosis carried little hope for survival because doctors understood little about the disease and how to control it. Today about two-thirds of all Americans diagnosed with cancer live longer than five years. While it is difficult to claim that a cancer patient is disease free, long-term survival significantly improves if the patient has had no recurrence of the cancer for five years after the initial diagnosis. For years, death rates from cancer were rising in developing countries. In 2006 the American Cancer Society reported that the number of cancer deaths in the United States dropped for two years in a row. The decrease was attributed to a decline in smoking, earlier detection, and improved treatment.

THALASSEMIA

Thalassemia

Leukemia

Leukemia

LEUKEMIA

Know the Early Symptoms of Leukemia

Leukemia destroy white blood cells or in the language of medicine called a white blood cell (WBC). With early recognition and treatment, the chance to recover from this disease will be better. The following are early symptoms of leukemia you need to know:

1. You often feel tired? Leukemia can cause you to tire easily, because of the increased production of white blood cells resulted in a large energy absorption of the body.

2. Is your weight continues to decrease? Would you eat a portion as usual, but your clothes getting loose? Leukemia causes reduced body weight, due to increased production of white blood cells to absorb many calories your body.

3. Record the frequency of headaches and feeling / dizziness and sometimes led to confusion. Increased production of white blood cells that normally do not penetrate into the possibility of central nervous system.

4th. Does your child often bleeding, nosebleeds, or appear bruised in several parts of her body? This is a common symptom of leukemia in children. Besides the red spots appear on the body, which is a common symptom of leukemia other children, is associated with swelling of the spleen and liver.

5. Check your type of paleness. Is your brightness and your face began redum kebinaran? This is also a common symptom of leukemia. Increased production of white blood cells that are not normally possible 'urgent' your red blood cells, thus making you be like less blood.

6. Check your lymph glands. Feel something under your armpits or on your throat. Do you feel a lump or swelling in there kind? Swollen lymph nodes are symptoms of leukemia symptoms

7. Try to feel and remember if you ever find a mild infection but did not get well? Even though your body continues to produce white blood cells, as anti body and your body against infection., But the white blood cells produced from the leukemia-affected person's body is not perfect and can not protect your body.

8. Check your spleen in a way: you lie in bed, place your palms on the left abdomen, below the rib cage. Feel if there is a small bump-bump there. This includes symptoms of leukemia.

9. Feel, do you often accompanied by night sweats and abdominal pain in the bones nausea / bloating. Waspadilah, karenatanda these signs are symptoms of leukemia.