Cancer Essay Essay on Breast Cancer Essay about Many Causes of Cancer Cancer Essay Essay on Brain Cancer Essay about Cancer

1. Cancer Essay
Cancer
Cancer is a disease in which cells grow out of control and invade, erode, and destroy normal tissue.
Damaged genes cause this development of cancer. These damaged genes are often a factor caused
by such things such as the environment, and can be influenced by inherited factors. As the very
early damaged cells divide they can evolve into a malignant cell population, and lose the control
mechanism that govern normal cell division. These malignant cells can then go on to form solid
tumours that start to destroy normal tissue. These can then spread to other parts of the body by
releasing these tumour cells. Once these cancer cells spread, they grow in other parts of the body and
then form...show more content...
These are known as mutagens. These carcinogens can cause errors, duplication or rearrangement in
DNA sequences that contribute to the progression of cancer. An example of a carcinogen is tobacco.
Tobacco smoke contains at least twenty carcinogens, which are known to cause lung cancer.
Age can be a factor when asked what causes cancer. This is because cancer becomes more common
as we get older. 85% of cancers are diagnosed in patients over fifty–five. This is because as we get
older we become more susceptible to some types of carcinogens. Age is also a cause as it takes a
long time for a cell to become cancerous, as there has to be a number of changes to the genes
within a cell, before it turns into a cancerous cell. Therefore the longer we live; the more time there
is for us to become susceptible to these mistakes in our genes.
Our genetics are also another cause of cancer. If we are born with one of these genetic mutations,
which can cause cancer, we are said to be genetically predipositional. This is known as many of the
genes that control cell growth, and DNA repair are associated with inherited cancer susceptibility.
The genes, which are susceptible to leading to cancerous mutations, are called proto–oncogenes.
They are called oncogens as the word "onco" means cancer. An example of this is the faulty genes,
BRCA1 and BRCA2. If a woman carries one of these genes, she is
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2. Essay on Breast Cancer
Breast cancer is the most common type of cancer in women, it accounts for one of every three
diagnoses in the United States. Breast cancers are malignancies, life threatening tumors that develops
in one or both breasts.
A female breast consists of fatty and fibrous connective tissues. The interior of the breast is divided
into about twenty different sections called lobes. Each of the lobes is further divided in to lobules,
which are structures that contain small milk–producing glands. These glands place the milk into tiny
ducts. These ducts take the milk through out the breast and store in a chamber located below the
nipple.
Breast cancer can either be invasive (spreading) or noninvasive (non–spreading). An invasive cancer
penetrates...show more content...
Chemicals are also suspected to cause breast cancer. Xenoestrogens are chemicals with estrogen–like
effects, they are found in pesticides and other common industrial products. Other estrogen–like
chemicals that have a stronger association with breast cancer include dieldrin and
beta–hexachloraocyclohexane. Although these chemicals are very weak estrogens, one study
showed that exposure to single weak–estrogen compounds isn't a big risk but a combination of two
or more chemicals result in extremely high estrogenic
chemicals. Many women, who took diethylstilbestrol (DES) to prevent miscarriages, increased the
risk for breat cancer in their children.
There are lost of ways to prevent cancer or try to prevent it. One of these is reducing your fat
intake. One study shows that the result of this is that the level of estrodiol, the potent form of
estrogen decreases. Another way to fight breast cancer is to eat plenty of fruit and vegetables. Many
fruits and vegetables contain chemicals that may be cancer fighters. A concentrated form of
limonene, a substance found in citrus skins, has been found to shrink breast cancer in animals. Some
studies have shown that if you breast–fed for more than four months it lowers your risk of the
cancer. In a recent study women who have underwent breast reduction have a low risk of getting
breast cancer by forty percent.
There
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3. Essay about Many Causes of Cancer
Causes of Cancer
Cancer is a non–inflammatory disease, which can be defined as abnormal cell divisions and
growth in a specific part of the living body. There are many different types of cancer, which are
classified and named according to the type of affected cells. In normal cases, each cell has
controllable limited growth and divisions in addition to limited life span. When this life span
completed, the cell will die. In cancer cell (abnormal cell), the cell growth become out of control
with unlimited divisions, and this cell does not die. The continuous abnormal division of cancerous
cell will form cancer mass. The cancerous cell can invade the neighbor cells or tissues in the body,
or can transfer through the blood vessels or the...show more content...
The inheritance of gene defects increases the chance of cancer formation in the future.
2.The Age
There is a positive relationship between age and cancer formation. The old people are more
susceptible to have cancer than the young people because they have weak immune systems, and they
also have been exposing to cancer–causing agents more than the young people and children.
Although the age and cancer are positively related, it is not necessarily that each old person will
have cancer.
3.Life styles and bad habits
There are many factors that could be included in bad life styles and habits, and may cause cancer.
The most harmful agents are tobacco and alcohol. There is no doubt that tobacco–smoking and
alcohol–drinking people may have cancer during their life. Some specific cancer types are mostly
related to tobacco and alcohol consumption (such as mouth, esophagus, stomach, lung, liver, and
kidney cancer), but this doesn't mean that tobacco and alcohol cause just these types of cancer, or
these types of cancer occur as a result of the consumption of these materials. Obesity and exercises
are another risk factors that may lead to cancer. People who are obese or do not exercise become
more susceptible to cancer because these factors can affect the immune and the endocrine systems.
4.Infections with some viruses and bacteria
Some specific types of viruses and bacteria are associated with specific types of
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4. Cancer Essay
Presently cancer kills one American every minute of ever day. There are 1,500 people diagnosed
with cancer every 24 hours a day. Specifically there are many types of cancer that could make you
extremely sick. Everybody in your family has probably had cancer at least once.("Research" 3)
Some people thinks cancer comes from Airport Scanners because of the Radiation from the airport
x–ray scanners. A bad food to eat is red meat Some people in Africa eats rats. Rats have red meat..
Red meat could give you Bladder cancer and other types of cancers. Their are over 1000 cancers on
earth. The Top 5 are Pancreatic Cancer, Lung Cancer, Breast Cancer Ovarian Cancer and Colo–rectal
Cancer. Pancreatic Cancer is in both men and women 40% will...show more content...
People can reduce their risks of getting cancer through diet, exercise, and weight loss.("Research
"3). Jim Valvano was a player for Rutgers University in 1960's he was a good player but, a better
coach. Jim Valvano coach for lots of teams in his 20 years of college hoops. Jim Valvano has three
daughters and one son. Valvano's best team was in 1983 with North Carolina Wolf Pack . He also
was a ESPN Commentary with the famous Dick Vitale. In June 1992 Jim was diagnosed with
terminal cancer. Jim was famous for his favorite quotes. "Don't Give up, Don't ever give up". Be
a dreamer If you don't know how to dream, your dead. And his last quote was "My father gave me
the greatest gift anyone could give another person he believed in Me". Jim Valvano's Daughter's
have caner to. Jenny is 28 with Breast Cancer. In Valvano's room Dick Vitale Sidney Lowe and
Coach K watching him until he died on April 28, 1993. Everyday he took 24 tablets to get him
through the day.{"Kirshenbaum Jerry"1). The V foundation for cancer and research was founded
by Jim Valvano. The foundation raises money for cancer. The V foundation has raised 80 million
dollars since 1993.("About Us"2). On March 4th, 1993 Jim was awarded the Inaugural Arthur
Ashe Courage award for his ESPY speech. Jim's ESPY speech was very good and it plays every year
before the Jimmy V Classic games. Jim's Spirit , drive, and determination carried him through his
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5. Essay on Brain Cancer
The brain is made up of millions upon millions of cells. These cells are formed from before birth,
up until about 7 years old. Once these brain cells stop dividing, they are never meant to divide
again. You can see that the division of brain cells is under strict regulation and control. When this
control is lost in a single cell, then it starts dividing in an uncontrolled manner. All of the data
obtained through research on cancer shows that this disease is caused by a rapidly dividing cell,
with no regulators to stop it from dividing. As the cell makes more and more copies of itself, it
grows to form a tumor. This is known as cancer.
When a tumor is developed on the brain, it is called a brain tumor or brain cancer. Brain tumors can
be...show more content...
Heredity also plays a role in the development of cancer. If a person's relatives have a history of
cancer, then that person has a higher risk of developing cancer. Genetic variations, particularly those
influencing how the body responds to carcinogens, may create a greater vulnerability to cancer.
Brain cancer is usually accompanied at first by headaches and seizures. Later symptoms could
include nausea, vomiting, fever, change in pulse, and trouble breathing. Other mental changes may
also occur such as difficulty in communication. Symptoms greatly depend on the location of the
tumor. For example, if the tumor were located on the part of the brain controlling vision, then vision
would be affected.
Once a person has been diagnosed with brain cancer, treatment should begin immediately. Treatment
for brain tumors involves any combination of surgery, radiation, and chemotherapy. Some tumors
require several different surgical procedures; some can be treated with radiation alone. Surgery is
the best process to remove a brain tumor. Surgery attempts to remove most, if not all of the tumor.
Once most of the tumor is removed, the rest of the tumor can be removed through a process called
radiotherapy.
Radiotherapy, also called radiation therapy, is the treatment of cancer and other diseases with
radiation. Radiotherapy is used when the entire primary tumor cannot be surgically removed.
Radiotherapy deposits energy
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6. Essay about Cancer
Cancer
Right now, cancer is one of the most feared diseases in the world. In the early 1990s almost 6
million new cancer cases developed and more than 4 million deaths from cancers occurred. Also
more than one–fifth of all deaths were caused by cancer and it has been predicted, by the American
Cancer Society, that about 33% of Americans will eventually develop this disease. This is a huge
disease that is killing people all over the world. The field of cancer study is called Oncology. The
government has spent billions of dollars on research of this fatal disease. Cancer is the most
aggressive disease of a larger class known as neoplasms. Neoplasms do not fully comply with the
parts of the cell that control the growth...show more content...
Any agent that causes cancer is called a carcinogen. Carcinogens are generally classified into three
groups– chemical, biological, and physical. Chemicals that cause cancer have many different
molecular structures and can be just about any type of chemical. Some substances that cause
cancer are complex chemicals and gases, certain metals, drugs, hormones, substances in molds and
plants and many more. Many nitrosamines, or simple organic oxides of nitrogen, are
carcinogenic. That and hydrocarbons are carcinogens in cigarette smoke and increase the risk of
lung cancer. Also another chemical gas, vinyl chloride, gas has been found to be an agent of
sarcoma of the blood vessels in the liver. Many drugs as well as alkylating agents used to treat
cancer are carcinogenic. Even though these chemicals break the DNA of cancerous cells, which kills
them, it also induces cancer in normal cells. Some hormones created in humans can also cause cancer.
High levels of estrogen, which is marked as a female hormone, can increase the chances of getting
a cancer of the uterus (in women). Aflatoxin B is a substance produced by the mold Aspergillus
that causes a number of cancer, but generally liver cancer. Many carcinogens have not been
discovered but research is being done to discover other carcinogens to keep people aware and safe.
There are also many different biological agents which cause cancers. The most
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