1) Cancer is a devastating disease that plagues our modern world.
2) It occurs when abnormal cells in the body start multiplying uncontrollably, invading nearby tissues and organs.
3) This unchecked cell growth can form a lump, or it can manifest as groups of cells that develop into tumors.
4) Medical science has identified over 100 different types of cancer to date.
5) The main categories of cancer include carcinomas, sarcomas, leukemia, and lymphomas.
6) Metastasis is the process where cancer cells spread through the bloodstream to other parts of the body, forming new tumors.
7) Screening tests such as colonoscopy, mammography, and Pap tests are crucial for early detection of cancer.
8) Biopsy, which involves taking a small sample of tissue for examination, is often needed for a definitive cancer diagnosis.
9) Tobacco use contributes to about 22% of cancer deaths, followed by factors like obesity and lack of physical activity.
10) Chemotherapy, a treatment that targets and kills cancer cells, is widely used to halt the abnormal growth of cancerous cells.