¿Qué es el cáncer?

Cancer is a complex disease with over 200 types, all starting from a single cell. It involves the transformation of healthy cells into cancerous ones through DNA damage, influenced by habits and genetics. The body's protective mechanisms, like apoptosis, can fail, leading to uncontrolled cell division and tumor formation. Tumors can metastasize, spreading cancer cells to other body parts, making early detection and treatment crucial.

What is apoptosis and why is it significant in the context of cancer?

Explain the process of metastasis and its implications for cancer treatment.