The past few years have seen tremendous strides in our understanding of cancer, including new hypotheses about its genetic origins and new treatment alternatives using the body's own immune response. In this eBook, The Science of Cancer, we examine what we know and what we're finding out about this scourge of humankind. We delve into the molecular basis and complex causes of cancer, the arguments for and against screenings, minimizing risk, and several new and targeted therapies, including homing in on stem cells, making use of viruses, and making use of vaccines to jump-start the immune system.