George R.R. Martin explained his views on religion in the storyverse of the A Song of Ice and Fire novels: there is no one true religion, and as in real life, it is unconfirmed if any of the deities in these religions really exists.
A PhD, short for Doctor of Philosophy, may help you secure a position as a college or university professor, a researcher in a government or industrial laboratory, a consultant, or an independent practitioner. The best way to prepare for your defense is to know your dissertation and your research inside and out. 2  At a successful defense, you'll need to present yourself and your work well both orally and in writing to earn recognition as a PhD candidate and a researcher.
Medical scientists do research both to develop new treatments and to try to prevent health problems. For example, they may study the link between smoking and lung cancer or between diet and diabetes. Medical scientists who work in private industry usually have to research the topics that benefit their company the most, rather than investigate their own interests.