2. According to the National Center for Health Statistics, cancer causes roughly
23 percent of all deaths in the US. It is the second leading cause of death and
the leading cause of death in children ages one to 14 in our country.
In 2010 there were reportedly 1.5 million new cases of cancer diagnosed in
America and approximately 570,000 died from cancer in that same year.
Cancer will effect about three out of four families in the United States. That
means that one in every two men and one of every three women will develop
cancer.
Research predicts that in the very near future cancer will be the number one
cause of death in the world.
About 60 to 80 percent of all cancers can be prevented. All it takes is to be
aware of your risks and follow the simple recommendations to prevent
cancer.
Here are the facts:
References: textbook pages 367 and 391
4. CANCER IS AN UNCONTROLLED GROWTH
AND SPREAD OF ABNORMAL CELLS
The picture on the left shows
what normal and cancer cells
look like under a microscope.
As you can see normal cells
are round and only have one
nucleus where as cancer cells
have multiple nuclei and lost
their nice round shape.
Reference: Textbook page 365
Photo credits: www.visualsonline.cancer.gov/
5. Deoxyribonucleic acid or DNA
and ribonucleic acid (RNA)
controls the growth of cells.
When the nuclei loses the ability
to control cell growth and
regulation, mutant cells start to
develop and cell division is
disrupted.
This is when cells can start to
grow out of control and
uncharacteristically, forming
what is called a tumor.
A tumor is a mass of cells that
can either be benign
(noncancerous) or malignant
(cancerous).
References: textbook page 365
Photo credits: www.healthspablog.org/
6. There are tumor suppressor genes within the DNA and when there
are defects in these genes, DNA starts to alter. That is when cancer
starts to form. These defects can come from many different causes
external and internal. The then defective DNA divides and mutates
until a malignant tumor is made. These tumors make an
enzyme, known as Telomerase that seems to keep the cancer cells
from dying.
Reference: Textbook page 365-366
Photo Credits: www.drdavesbest.com
7. HERE IS A PICTURE OF SOME
CAUSES OF CANCERS
There are outside causes like UV-
rays and those that can come from
our diet (internal) that we can
control by avoiding excess sun
exposure and eating a healthy diet. Reference: Textbook page 374
Photo Credits: www.cisncancer.org
8. CANCER ALL BEGINS WITH THE ABNORMAL
GROWTH OF ONE CELL
Once that begins that one
cell can multiply into
billions and billions of
cancer cells. At this point
the malignant tumor has
been confined to one area
and has not spread. This
stage is known as
carcinoma in situ. It is no
treat to the health of the
human, but once oxygen
and other nutrients enter
the cells that is when
growth and the spread of
the cancer occurs. Reference: textbook page 366
Photo Credits: www.web-books.com
9. AFTER SOME TIME THE CANCER CELLS PRODUCE
CHEMICALS THAT INCREASE THE FORMATION OF
BLOOD VESSELS INTO THE MALIGNANT TUMOR
When the formation of
angiogenesis (blood vessels)
occurs, the cancer cells can
now break from the tumor
and spread to the rest of the
body. The process of the
moment of cells from one part
of the human body to another
is called metastasis. When
cancer cells metastasize, it can
develop in other parts of the
body causing the treatment of
the metastasized cells harder
to cure.
Reference: Textbook page 366-367
Photo Credits: www.iayork.com/
11. ONE OF THE MOST COMMON TYPES OF CANCER
IS LUNG CANCER
Photo Credits: www.karunaflame.com/
12. LUNG CANCER
RISKS
1. Smoking cigarettes, cigars, and pipes increase the risk of
cancer. A study shows that about 9 out of 10 tobacco smokers
cases get lung cancer.
2. The length and the amount of times a person smokes increases
their risk of lung cancer. The more a person smokes per day
rises their risk significantly as well as the number of years a
person has been smoking.
3. A nonsmoker who lives with a smoker has a 20 percent greater
risk of getting lung cancer than living with nonsmoker
roommates.
4. The exposer to radon gas, which is greater in homes of
smokers.
Reference: Textbook page 377
13. Smoking is a huge risk for lung cancer. Did you know
that smoking can cause other cancers and diseases?
Photo Credits: www.cdc.gov/
14. WARNING SIGNS
THAT IT MIGHT
BE LUNG CANCER
1. Any unexplained/out of the ordinary symptoms that were not
present before like constant diarrhea and extreme weight
lose without trying.
2. Coughing up blood.
3. A persistent cough.
4. Feeling short of breath.
5. Constant pain in chest and back.
6. Reoccurring Bronchitis and/or Pneumonia.
7. Abnormal fatigue.
References: Textbook page 379
15. Do you know what’s in your cigarette?
Photo Credits: http://www.wctu.org
16. FACTORS THAT CAN
LEAD TO PREVENTION
OF LUNG CANCER
1. STOP smoking now! A person with ten years of not smoking after
quitting reaches the same health as a person who has never
smoked.
2. If you don’t smoke, NEVER start. It is a hard and harmful habit to
quite.
3. Get your home or dorm tested for radon gas. They should be
tested periodically for the gas.
4. Exercise you right for clean air. Go where there is not chance for
secondhand smoke.
5. Get regular exercise. Exercising increases a person’s lung and body
health.
Reference: Textbook pages 376-377
Photo Credits: www.smokeforwhat.com
17. If you don’t quite smoking it could be…
…For you …
Photo Credits: www.medicaly.net
18. Stop smoking now (if you do) and don’t start (if you
don’t).
Get plenty of exercise, at least three times a week.
Eat a healthy balanced diet.
Limit your exposer to sun to the recommended
amount (10 to 20 minutes of unprotected sun
exposer).
Schedule a cancer screening with your doctor
today!
Prevent cancer now by:
Reference: textbook page 374
19. The next time you have questions regarding lung and all cancers and
how to prevent them be sure to check out the facts at:
• http://www.cancer.org/cancer/index
• http://www.cancer.gov/cancertopics/cancerlibrary/what-is-cancer
• http://www.mayoclinic.com/health/cancer/DS01076/DSECTION=pr
evention
• http://www.cdc.gov/cancer/lung/basic_info/prevention.htm
Ref. Hoeger & Hoeger (12th ed.) Lifetime Physical Fitness & Wellness
