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Radiotherapy uses high energy radiation in a very controlled way to treat cancer and other diseases of the body. Radiation works by damaging the DNA inside cells causing them to stop reproducing and die. Abnormal cancer cells are more sensitive to radiation because they divide more quickly than normal cells. Over time, the abnormal cells die and the tumor shrinks. Normal cells can also be damaged by radiation, but they can repair themselves more effectively, just like your skin heals after sunburn.

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The main goal of radiation therapy is to maximize the radiation dose delivered to abnormal cells, such as cancer cells, while minimizing the dose received by normal cells surrounding them. This minimizes the chance of any side effects. The effects of ionizing radiation are not instant; the treatment benefit occurs over time. Typically, more aggressive tumors, whose cells divide rapidly, respond more quickly to radiation. Radiation therapy is painless treatment option and will not make patients radioactive.

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Radiation is often given with the intent of destroying tumors and curing the diseases. However, not all cancer can be cured with radiation. Sometimes radiation is used to relieve symptoms, such as pain. or it is used to prevent tumors from developing or spreading. It may be used alone or in combination with other treatments such as surgery or chemotherapy. If used before surgery, it will shrink the tumor to make it easier to remove. And, if used after surgery, it will destroy tumor cells that may have been left behind.

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Radiotherapy is not a simple process. It is not as easy as just exposing someone to a field of radiation. And then we’re done!   It is a  complex process, which needs to achieve accuracy to within sub millimeter tolerances,...
Often we get questions regarding radiation, weather it is through this website, or in person. It is great that people want to know more about radiation, and it also shows that sometimes the public is misinformed on certain subjects. All...
The question whether microwaves put radiation into our foods is common. This is a little off topic compared to what we usually write about. Nevertheless it needs to be answered.   Microwaves, or microwave ovens as some people would call...
There are two main types of brain tumours and a number of different factors that cause them. To start things off, we’re going to discuss what brain tumours are and their types.   A mass of tissue that forms in...
Cell Phones, do they cause cancer? There are an estimated 6.9 billion cell phones in the world in 2014, yet only 4.5 billion people have access to working toilets. And since cell phone are cheaper every year there will soon...
The question “does it make sense to use radiation to cure cancer when radiation can cause cancer” often comes up in conversations about radiation therapy. It’s a good question, and it is true that radiation can increase your chances of...
What are the goals of Radiation Therapy   Simple put, the goal of  radiation therapy is to cure cancer!   This might come as a surprise to you. Radiotherapy can cure cancer. And generally this is the goal of radiotherapy,...