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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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Many patients and caregivers have questions regarding radiation therapy. It is understandable. Radiotherapy is not commonly known about. After all, it often gets mistaken for Radiology. So we will quickly answer a couple of the most common questions about radiation...
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How are Physics and Radiotherapy Related?   So what does physics have to do with radiotherapy, and for that matter what does physics have to do with medicine? Isn’t physics done at high tech laboratories such as the large hadron...
There are many perception out there on the risk of radiation. Many people believe radiation to be extremely harmful to their health. But are these perception of the risk of radiation warranted?   First off, we are specifically talking about...
Radiotherapy is a great treatment option for prostate cancer.   Radiotherapy has been a great treatment option for prostate cancer patients. This is especially true for early stage prostate cancer patients, but good cure rate for later stage patients have...
Cancer is a normal part of being a large and complex multi-cellular organism. But that does not mean it’s inevitable. Evolutionary and ecological approaches to cancer point to many things we can do to lowering your Risk of Developing Cancer....
Cancer is a strange one. If you have ever been affected by it, either personally, or family and friends, you will know that it seems like one of the least normal things around. It is truly disrupting to all aspects...
  More and more research is taking place on the risk of Secondary cancer risk in the radiation oncology communities. This is because the treatment we are delivering these days have much higher chance of survival than in decades before....