Science affects all of our lives, without it life expectancy would be about half what it actually is and we would still be reading by candle-light. However, for all of those incredible advances, the facts it has shed its light upon. Science is not the answer, it simply gives us huge amounts of information, a myriad of theories, backed up by evidence, in essence, cold, brutal facts. It is how we interpret these facts that leads to answers. Prior knowledge, fears, prejudices, and emotions amongst other factors all have a major affect on the decisions we take. For example, medical science has enabled doctors to sustain existence, even after brain death has occurred, is it always in the patients best interests to provide this intensive care, when there is absolutely no prospect of regaining consciousness? We can see clearly that the advancements are not in themselves the answer to the problem of sustaining life, it simply provokes new questions, with all of the inherent moral dilemmas.