What+causes+cancer?


 * __WHAT CAUSES CANCER?__**

Answer the question below, append new answers to the top of this page. _ __Response 1:__ Cancer can be caused by many things. These are: genetics, diet and physical activity, tobacco, and sun and UV exposure.
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Cancer is a disease of abnormal gene function. Genes control things like eye colour, hair colour, height, etc. but they can affect chances of getting diseases, such as cancer. Mutation is what you call when you have a abnormal change in in a gene. There are two types of mutations that are inherited and acquired. Inherited mutations are passed from parent to child. This can happen through the egg or sperm. This kind of mutation is in every cell of the body. Acquired mutations don't happen through the egg or sperm. It happens through some point in a person's lifetime. This mutation will occur in one cell, then be passed onto another, and another. Genes are seemed to have two major roles in cancer. These are: oncogenes, which cause cancer, and tumour suppressor genes, which stops the cancer from developing or grow. Oncogenes have a connection with proto-oncogenes. When a proto-oncogene changes into a oncogene, it turns on activities that are supposed to stay "off". In short terms, this will lead to cancer. When something goes wrong with the tumour suppressor gene, like a mutation, the cells go out of control, therefore causing cancer.
 * Genetics**

This portion of what causes cancer is all about staying healthy, which research has proven. Luckily, this cause of cancer can be controlled by ourselves. To reduce the risk of cancer, you should: get to and stay a healthy weight, make healthy food choices, and be physically active on a regular basis. Controlling your weight is very important because it can reduce the risk of developing many cancers. These include the breast, colon, endometrium, and many others. Being active also falls into the category of controlling your weight. Participating in physical activity on a regular basis contributes to a healthy diet, therefore reducing your risk of developing cancer.
 * Diet and Physical Activity**

Skin cancer is the most common type of cancer that develops. It occurs when you are too much exposed to the sun and UV rays. However, it can also occur from man made indoor lamps. Fortunately, it isn't difficult to prevent. Doing a once a month test will help you get treatment for this cancer because it is easiest to spot physically.
 * Sun and UV Exposure**

Citation: http://www.cancer.org/Cancer/CancerCauses/index
 * Rudra M**

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