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why is it so hard to cure cancer

A student in California asks the scientistsв. Akhila: My name is Akhila and I go to Christensen Middle School in Livermore, California, and my question is, what are the properties of cancer that make it so hard to cure? EarthSky asked Kent Hunter, a cancer biologist at the National Cancer Institute. Kent Hunter: The problem with cancer is that itвs actually our own cells that have lost the ability to control their growth. And so the body has a very difficult time distinguishing cancerous cells from normal cells. And by the same way, itвs very difficult for us to design drugs that will destroy cancer cells without harming the rest of the cells in the body.

These out-of-control cells divide and grow into cancerous tumors. A common treatment is chemotherapy, or drugs that target and kill cancer cells. But tumors can be a moving target. Kent Hunter: Some tumors have the ability to constantly change в theyвre changing their biology as they grow. Some of the chemotherapies will kill many of the cancer cells but not all of them. And the cells that are resistant will just regrow the tumor, so you basically end up not solving the problem. Still, Hunter is optimistic about a cure for cancer. He said scientists have made huge progress in the fight against it.

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Why is it so hard to cure cancer? Kyuson Yun Download a free audiobook and support TED-Ed s nonprofit mission: http://adbl. co/2gauxND Check out Siddhartha Mukherjee s The Emperor of All Maladies : http://ift. tt/2ycXH5s View full lesson: http://ift. tt/2xwTFRi Weвve harnessed electricity, sequenced the human genome, and eradicated smallpox. But after billions of dollars in research, we havenвt found a solution for a disease that affects more than 14 million people and their families at any given time.

Why is it so difficult to cure cancer? Kyuson Yun explains the challenges. Lesson by Kyuson Yun, directed by Artrake Studio. Check out our Patreon page: http://ift. tt/2v1FEd5 Thank you so much to our patrons for your support! Without you this video would not be possible. Mukamik, Tushar Sharma, Dmitry Neverov, Mohammad Khory, Goh Xiang Ting Diana, Umar Farooq, Kevin Wong, Activated Classroom Teaching, Constantin Salagor, Daniel Mardale, Monica Grace Ward, Dawn Jordan, Yanira Santamaria, Prasanth Mathialagan, Savannah Scheelings, Yalda A. , Susan Herder, Be Owusu, Samuel Doerle, David Rosario.

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