Ludmil Alexandrov, PhD, and his team have discovered that smoking causes mutations in DNA. Mutations are changes to the cellular instructions encoded in the DNA of each cell. If they disturb how the cell functions, they can cause cancer. Dr. Alexandrov and his international team discovered mutations in every lung cancer cell they studied and also in cancer cells of other organs.
Dr. Alexandrov talked to Crystal Gutierrez, KRQE "This Morning," about the research: