Bioethics has become an important part of everyday dynamics, encompassing both clinical and research ethics. This edited collection aims to challenge some critical cornerstones of today's contemporary bioethical concerns and issues. The individual chapters were prepared by esteemed scholars with international background in their specialties. Nowadays technological revolution is reaching a whole new level, continuously challenging us to define what is human. Keeping this in mind, the authors provided comprehensive and thoughtful views on different bioethical issues, including cultural and social influences on contemporary bioethics, posthumanism and transhumanism, death, the critical importance of informed consent, prenatal genetic testing, gene and cell therapy, mandatory vaccinations, cannabis use, antidoping concerns, treatment of rare diseases and pain management, and finally educational and legislative lines of reasoning.