Quais fatores podem aumentar o risco seu de cancer?

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What factors can increase your risk of cancer?

Student: Guilherme B. Pansera 10/09/2012

Biology Lab 103-015

What factor can increase your risk ofcancer?
Doctors often cannot explain why one person develops cancer and another does not. But research shows that certain risk factors increase the chance that a person will develop cancer. Factors thatincrease cancer risk can be external such as personal lifestyle choices or substances such as chemicals and asbestos, present in the environment, that are known to cause cancer. Some people also haveinternal risk factors for cancer such as a genetic predisposition or those that develop as a result of aging.
* Tobacco
Smoking causes 30% of all cancer deaths and is responsible for 87% of casesof lung cancer. Not only does it affect the lungs, it can cause kidney, pancreatic, cervical, and stomach cancers and acute myeloid leukemia.
* Genetics
Genetics can play a big role in cancerdevelopment. If you have a family history of cancer, such as breast cancer, taking extra precautions is vital. When cancer is genetic, a mutated gene has been passed down. Keep in mind that if you havea family history of cancer, it does not mean you will develop it.
* Unsafe Sex
Practicing unsafe sex can increase your risk of developing a virus called HPV. HPV is a group of over 100 viruses,medically known as human papillioma virus. HPV increases your risk factor for cervical, anal, vulvar and vaginal cancer.

* Physical Activity
Exercising at least 30 minutes a day, 5 days a weekgreatly reduces your cancer risk.. Not only is physical activity important to preventing other diseases, it reduces the chances of becoming obese. Obesity is a major cause for many cancers.
* SunExposure
Skin cancer is caused by exposure to the UV rays of the sun. Wearing sunscreen when outdoors and staying out of the sun between the hours of 10 a.m. and 2 p.m., when the sun's rays are...
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