Chronobiology in Medicine aims to ensure that all articles published in the journal report on work that is morally acceptable, and expects authors to follow the World Medical Association’s Declaration of Helsinki (https://www.wma.net/policies-post/wma-declaration-of-helsinki-ethical-principles-for-medical-research-involving-human-subjects/). All of the manuscripts should be prepared in strict observation of research and publication ethics guidelines recommended by the Council of Science Editors (http://www.councilscienceeditors.org/), International Committee of Medical Journal Editors (ICMJE, http://www.icmje.org/), World Association of Medical Editors (WAME, http://www.wame.org/), and the Korean Association of Medical Journal Editors (KAMJE, https://www.kamje.or.kr/board/view?b_name=bo_publication&bo_id=7&per_page=). Any study including human data must be reviewed and approved by a responsible Institutional Review Board (IRB). Animal experiments also should be reviewed by an appropriate committee (IACUC) for the care and use of animals. Also studies with pathogens requiring a high degree of biosafety should pass review of a relevant committee (IBC). The editor may request submission of copies of informed consents from human subjects in clinical studies or IRB approval documents. Chronobiology in Medicine will follow the guidelines by the Committee on Publication Ethics (COPE, http://publicationethics.org/) for settlement of any misconduct.