🦊 In this GCSE Biology video, we explain that cancer results from uncontrolled cell growth and division, often due to changes in genes affecting cell differentiation or division. It distinguishes between benign and malignant tumors: benign tumors are abnormal cell growths contained within one area, not cancerous and don't spread to other body parts, but can still be life-threatening if they grow large enough to pressure organs. Malignant tumors, however, are cancerous, not contained, and have the ability to invade neighboring tissues and spread to other parts of the body through the bloodstream, leading to secondary tumors. The video highlights the most common cancers in the UK, including breast, lung, prostate, and bowel cancer.
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