Cancer starts when cells in the body begin to grow uncontrolably. the human body is made up of trillions of living cells and these cells divide quicker to allow a child to grow and when a person is completely grown they only devide to replace wornout or dead cells and to allow growth in case of injuries. Cancer cell growth is quite different from normal cell growth because instead of dying, cancer cells continue to grow and form new and dangerous abnormal cells. Cancer cells can also grow into other tissues which is something that normal cells dont do and this growing out of control and invading other healthy tissues is what makes a cell a cancer cell. Every cell contains DNA and it directs all the cell’s actions. In a normal human cell, when DNA is damaged the cell either repairs the damage or the cell dies. In cancer cells, the damaged DNA is not repaired, and the cell doesn’t die like it should and instead, the cell continues to produce and make new cells that the body doesn’t need. These new cells all have the same abnormal DNA as the first cell does.
You can inherit abnormal and damaged DNA, but most DNA damage is caused by errors that occur while the normal cell is reproducing or by some change in the environment. Sometimes the cause of the DNA damage may be something extremely obvious like cigarette smoking or alcohol abuse. But it’s rare to know exactly what caused any one person’s cancer even with all those bright minds out there. A out of controlled cancer cell will form a tumor.
Some cancers, like leukemia, rarely form tumors but Instead, these cancer cells involve the blood and blood-forming organs and circulate through other tissues where they grow an inhabit.
Cancer is the second leading cause of death in the United States and the world and around one-half of all men and one-third of all women in the US will develop cancer during their lifetimes and sadly if they will also pass it on to their children and thier childrens children. Today, millions of people are living with cancer or have had cancer.
To avoid the perils of cancer and stay healthy try these helpful suggestions:
Eat at least five servings of fruits and vegetables each day. Fruits and vegetables may lower your risk for some kinds of cancer.
Don’t use tobacco. If you do, quit. This is the single most important thing you can do to prevent cancer.
There is no upper age limit for the Pap test. Even women who have gone through menopause should have regular checkups, including a pelvic exam and a Pap test.
Cancers of the colon and rectum are likely to occur as people get older. Three tests can help find these cancers early which are: rectal exam, guaiac stool test, and sigmoidoscopy.
Prostate cancer is the most common cancer in American men, especially older men. Discuss with your doctor early detection tests and their benefits and drawbacks.
Avoid unnecessary x-rays.
If you do have cancer, find out what your treatment choices are and which are best for you and alway get a second and third opinion.